Answers
The coordinates of the image of the triangle and the rules that can be used to transform the triangle are;
1. A' is located at (-3, 3)
B' is located at (-2, -1)
C' is located at (2, 1)
Second part; The rules are;
(x, y) → (x + 5, -y)
(x, y) → (5·x, 5·y)
What is a transformation of a geometric figure?A transformation of a figure is the reorientation of the figure to change the size and position of the figure.
1. The coordinates of the triangle ABC following the transformation (x, y) → (-x, y) are;
A(3, 3) (x, y) → (-x, y) A'(-3, 3)
B(2, -1) (x, y) → (-x, y) B'(-2, -1)
C(-2, 1) (x, y) → (-x, y) C'(2, 1)
2. The coordinates of the vertices of the triangle are; (1, 1), (4, 1), and (0, 4)
Translating the triangle five units right, we get;
(1 + 5, 1) = (6, 1), (4 + 5, 1) = (9, 1), and (0 + 5, 4) = (5, 4)
The coordinates of the triangle following a translation 5 units right are therefore; (6, 1), (9, 1), and (5, 4)
The coordinates of the image of the point (x, y) following a reflection across the x-axis is the point (x, -y), therefore;'
The coordinates of the image of the triangle obtained from the previous transformation following a reflection across the x-axis is therefore;
(6, 1) reflection across the x-axis → (6, -1)
(9, 1) reflection across the x-axis → (9, -1)
(5, 4) reflection across the x-axis → (5, -4)
A rule that takes the triangle to a congruent triangle right five units and reflected over the x-axis is therefore;
(x, y) → (x + 5, -y)The transformation of a triangle by a dilation by a scale factor of five, such that the triangle is five times larger can be obtained by the expression for a dilation transformation as follows;
(x, y) → (a·x, a·y)
Therefore, we get;
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Related Questions
When Ram was 16 years old, he deposited a certain sum of money in a bank at the rate of 10% p. a. Compounded annually. After his balance became 121 /700 times of the initial principal, he deposited 1/70 of the existing balance in the same account. After 1 year to this deposition, the bank changed it's policy to give interest at 20%p.a. simple interest. At the age of 24 years, Ram planned to start a business so, he withdrew all the money from his account. He found that the withdrawn amount was Rs. 359 less than thrice of the initial principal. Then,
1) Find the sum deposited by Ram at the age of 16 years.
2)The amount withdrawn from the bank was not enough so, he borrowed a loan of Rs. 1,10,000 from the bank and agreed to pay within 4 years, at a rate of 15% pa. compounded annually. He paid the interest of the first year at the end of the 1st year. He cleared his debt by paying equal installments in next year 2 years and 1 year. Find the total interest paid by him to the bank.
3) For how many years, he should have waited -to start the business so that he need not borrow an entra loan?
Answers
Step-by-step explanation:
Let the principal deposited by Ram at the age of 16 be P.
After the balance became 121/700 times of the initial principal, we have:
(121/700)P = P(1 + 10/100)^n
where n is the number of years for which the amount is compounded annually.
Simplifying the above equation, we get:
n = log(121/700)/log(1.1)
After Ram deposited 1/70 of the existing balance, his new balance became:
(121/700)P + (1/70)[(121/700)P] = (121/700)P(1 + 1/10)
After 1 year of this deposit, the new balance became:
(121/700)P*(1 + 1/10)(1 + 20/100) = (121/700)P(11/10)*(6/5) = (363/350)P
Given that this amount is Rs. 359 less than thrice of the initial principal, we get:
(363/350)P = 3P - 359
=> P = Rs. 2450
Therefore, the sum deposited by Ram at the age of 16 years was Rs. 2450.
The loan amount borrowed by Ram from the bank is Rs. 1,10,000 at a rate of 15% p.a. compounded annually for 4 years. Let the interest paid by Ram at the end of the 1st year be I1.
The amount to be paid by Ram at the end of the 1st year = 1,10,000*(1 + 15/100) = Rs. 1,26,500
Out of this, Ram pays only the interest amount, i.e., I1.
The remaining amount to be paid by Ram after the 1st year = 1,26,500 - I1
This amount is to be paid in 3 years, at a rate of 15% p.a. compounded annually.
Let the equal installments to be paid by Ram for the next 3 years be X.
Therefore, we have:
X*(1 + 15/100)^3 + X*(1 + 15/100)^2 + X*(1 + 15/100) = 1,26,500 - I1
Solving the above equation, we get:
X = Rs. 36,285.47
Therefore, the total interest paid by Ram to the bank is:
I1 + 3X - 1,10,000 = I1 + 336,285.47 - 1,10,000 = Rs. 59,856.41
To avoid borrowing an extra loan, the withdrawn amount should be equal to or greater than the amount required to start the business.
The withdrawn amount is given by:
3P - 359 = 3*2450 - 359 = Rs. 6891
Therefore, Ram should have waited for the amount in his bank account to become Rs. 6891 or more, which would take n years, where:
(121/700)2450(1 + 10/100)^n >= 6891
Solving the above equation, we get:
n >= 4.52
Therefore, Ram should have waited for at least 5 years to start the business, to avoid borrowing an extra loan.
Roven bought 1/3kg of surkey ham. Chisa bought 2/9kg less barkey
ham thon Raven, How many kilograms of turkey hom did they
buy together!
Answers
Raven bought 1/3 kg of turkey ham, and Chisa bought 2/9 kg less. The total amount of turkey ham they bought together is 1/3 + 1/9 = 3/9 + 1/9 = 4/9 kg. Together, they bought a total of 4/9 kg of turkey ham.
What is fraction?A fraction is a mathematical symbol that represents a portion of a whole or a component of a number. It is made up of two numbers divided by a horizontal line, with the number above the line (numerator) indicating the portion under consideration and the number below the line (denominator) indicating the entire or the total number of equal parts in the whole.
How many kilograms of turkey ham did they buy together?From the given information, we know that Raven bought 1/3 kg of turkey ham, and Chisa bought 2/9 kg less than Raven. This means that Chisa bought:
1/3 kg - 2/9 kg = 3/9 kg - 2/9 kg = 1/9 kg
Now we can find the total amount of turkey ham they bought together by adding Raven's purchase and Chisa's purchase:
1/3 kg + 1/9 kg = 3/9 kg + 1/9 kg = 4/9 kg
Therefore, Raven and Chisa bought a total of 4/9 kg of turkey ham together.
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s varies directly as t, and = 8 when = 16. Find the constant of variation and write a direct variation equation relating s and t. Then find t when = 16. (Write answers in decimal form.)
constant of variation:
direct variation equation:
when s=16, t=
Answers
The constant of variation and write a direct variation equation relating s and t direct variation s= (1/2)t and t=32.
What is direct variation?Direct Variation is that in which there is a relationship between two variables in which one is a constant multiple of the other. For example, when one variable changes the other also changes, then they are said to be in proportion. If y is directly proportional to x then the equation is of the form y = k x (where k is a constant).
Given that,
s varies directly as t
i.e. s∝ t
⇒s= kt [ where k is the variational constant] -------------(1)
Given that s=8 when t= 16
putting these values in equation (1) we get,
8= k× 16
k= 8/16
k= 1/2
so, s= (1/2)t
If s= 16 then t= 16×2=32
Hence, s= (1/2)t and t=32
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PLEASE PLEASE HELP HURRY!!!
Score for Question 2:___ of 2 points)
2. Determine the volume of the figure that has a radius of 2 feet. Round your answer to the nearest tenth of a
cubic foot.
Answer:
-3 ft
-2 ft
10 ft
Answers
Step-by-step explanation:
The volume of a cone is given by the formula (1/3)πr^2h, where r is the radius of the base and h is the height. So, the volume of the cone is:
V_cone = (1/3)π(2 ft)^2(3 ft)
V_cone = (4/3)π ft^3
The volume of a cylinder is given by the formula πr^2h, where r is the radius of the base and h is the height. So, the volume of the cylinder is:
V_cylinder = π(2 ft)^2(10 ft)
V_cylinder = 40π ft^3
To find the total volume, we add the volumes of the cone and cylinder:
V_total = V_cone + V_cylinder
V_total = (4/3)π + 40π
V_total = 133.2 ft^3
Rounding off the answer to the nearest tenth of a cubic foot, the total volume is approximately 133.2 ft^3.
Answer: 138.23 ft³
Step-by-step explanation:
V = V of Cylinder + V of Cone
V of Cylinder = πr^2h
V of Cylinder = (2)^2 x 10 x π
V of Cylinder = 40π
V of Cone = πr^2(h/3)
V of Cone = π x (2)^2 x 3/3
V of Cone = π x 4 x 1
V of Cone = 4π
Total V = 40π + 4π
Total V = 138.23 ft³
a population consists of 13 items. what is the number of different simple random samples of size 3 that can be selected from this population?
Answers
Step-by-step explanation:
to select 3 out of 13.
no repetition, and the sequence of the selected items does not matter.
that means combinations :
C(13, 3) = 13! / (3! × (13 - 3)!) = 13! /(3! × 10!) =
= 13×12×11 / (3×2) = 13×2×11 = 286
there can be 286 different random samples of size 3.
The answer is 286.
The number of different simple random samples of size 3 that can be selected from a population consisting of 13 items is 286.Explanation:Simple random sampling is a statistical technique used in research. In this sampling method, a subset of a population is selected randomly, with each member of the population having an equal chance of being selected. There are different types of random sampling methods, such as systematic sampling, stratified sampling, cluster sampling, etc.The number of different simple random samples of size k that can be selected from a population of size N is given by the formula N!/k!(N-k)!, where ! denotes factorial. Here, the population consists of 13 items, and we need to find the number of different simple random samples of size 3 that can be selected from this population.So, the required number of different simple random samples of size 3 that can be selected from this population is 13!/3!(13-3)! = 286.
Therefore, the number of different simple random samples of size 3 that can be selected from a population consisting of 13 items is 286.
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Kayla, Tony, and Danielle kept track of their communications over a week. The data collected is represented in this display.
Which questions can be answered from this display?
Answers
After answering the presented question, we can conclude that Kayla had expression the most conversations on Wednesday, with eight.
what is expression ?An expression in mathematics is a collection of representations, digits, and conglomerates that mimic a statistical correlation or regularity. A real number, a mutable, or a combination of the two can be used as an expression. Mathematical operators include addition, subtraction, rapid spread, division, and exponentiation. Expressions are often used in arithmetic, mathematics, and form. They are employed in the representation of mathematical formulas, the solving of equations, and the simplification of mathematical relationships.
Tony had the most communications over the week, with a total of 33.
Danielle had the fewest communications over the week, with a total of 16.
Kayla and Tony had the most conversations on Monday, with each having nine.
On Thursday, Tony communicated 7 times.
Danielle communicated 16 times during the week.
Kayla had the most conversations on Wednesday, with eight.
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Answer:
Step-by-step explanation:
Hello! I just did the quiz and this was the correct answer!
Find the equation of the line that passes through the point (8,-7) and is perpendicular to the line y = 1/2x-2
The equation of the line is
(Use integers or fractions for any numbers in the equation. Simplify your answer.)
Answers
Answer:
[tex]y=-2x+9[/tex]
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals of each other, so the line we need to find has a slope of [tex]-2[/tex].
Using point-slope form,
[tex]y+7=-2(x-8) \\ \\ y+7=-2x+16 \\ \\ y=-2x+9[/tex]
The surface of a cylinder is represented [tex]A = 2\pi r^{2} + 2\pi rh[/tex], where r is the radius of the cylinder and h is its height. Factor the right side of the formula.
Answers
Formula given for surface area of cylinder A=2πr² + 2πrh, where r is the radius and h is the height of the cylinder and its factorised form is A=2πr(r+h).
What is cylinder?
Cylinder is a three dimensional solid containing three faces, of which two are flat circles and third face is the curved face. The volume or space occupied by this solid is given by πr²h. And its curved surface area is given by 2πrh. The total surface area of this solidis the sum of areas of all three faces which is given by 2πr² + 2πrh.
Given that, surface area of cylinder is A=2πr² + 2πrh
To factorise any given expression or equation, we find the factors of the each terms.
1st term=2πr²
factors of 1st term= 2 × π × r × r
2nd term= 2πrh
factors of 2nd term= 2 × π × r × h
Next, find the common factors from these terms
common factors or highest common factors of 1st and 2nd term=2 × π × r
The highest common factors are written outside the brackets & the remaining terms inside the brackets.
A=2πr² + 2πrh
=2 × π × r (r + h)
=2 π r (r + h)
A=2 π r (r + h) is the factorised form of the surface area of cylinder.
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I NEED HELP ON THIS ASAP!!! IT'S DUE TONIGHT
Answers
Because the distances XY and X'Y' are different, we can conclude that the rotation is incorrect (it shouldn't affect the lengths of the sides).
How to determine if the rotation is correct or not?Let's look at the original triangle, we can see that the distance between the vertices X (2, 5) and Y (10, 9) is:
Distance = √( (2 - 10)² + (5 - 9)²)
Distance = 8.94
The distance between the corresponding vertices in the second triangle X' (0, 1) and Y' (3, 9) is:
D = √( (0 - 3)² + (1 - 9)²) = 8.54
So that distance changed, which means that the shape of the triangle is now different, so the rotation is not done correctly.
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A bag has 12 different-colored marbles: 4 green, 5 blue, 1 yellow, and 2 orange. You draw a marble from the bag. If you get an orange marble or yellow marble, you win a prize.
Simulations may be used to find experimental probability. A simulation is a representation or model used to show outcomes of multiple trials of an experiment. For example, you could model 50 coin flips by assigning a 1 to heads and a 2 to tails, then using a random number generator to generate 50 outputs of the numbers 1 and 2. You may also simulate draws of a number by using a spinner, where the numbers on the spinner directly represent the numbers to be randomly drawn.
Use the game you chose in Part 1 to complete these tasks and answer these questions:
a. For the game you chose in Part 1, create a simulation to determine the experimental probability of winning the game. Your simulation should use tools that are not the same as those used in the game. Do not use a bag of marbles for the first game, a spinner for the second game, or cards for the third game. After you have chosen your tools, do at least 50 trials of your simulation. Record the trial results using a frequency table.
b. Describe how the simulation is used to calculate the experimental probability of winning the game.
c. Use the results of the simulation to calculate the experimental probability of winning. Show your work and provide the formula/ratio used.
d. What was the most likely outcome in the simulation? What was the least likely outcome? Why?
Answers
Thus, the theoretical probability (winning the game) when given that when orange marble or yellow marble appears is 1/4.
Explain about the term probability:The concept of probability can be applied to either individual events or relationships between them, including intersection and union, in the field of accounting. Any event's probability value could be between 0 and 1 (or 0% and 100%).
The probability value represents the likelihood that a specific event or outcome will occur given a list of all conceivable events or outcomes. It is possible to express the probability value as a fraction or percentage. Also, depending on how an event is related to other events, the probability of an occurrence may be described in terms both independent or conditional probability.Given data:
Total marbles in bag = 12.4 green, 5 blue, 1 yellow, and 2 orange.probability = favourable outcome / total outcome
probability (winning the game) --> only when orange marble or yellow marble appears.
Thus,
Total favourable outcome = 1 yellow + 2 orange = 3.
probability (winning the game) = 3/12 = 1/4
Thus, the theoretical probability (winning the game) when given that when orange marble or yellow marble appears is 1/4.
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Correct question:
A bag has 12 different-colored marbles: 4 green, 5 blue, 1 yellow, and 2 orange. You draw a marble from the bag. If you get an orange marble or yellow marble, you win a prize.
What is the theoretical probability of winning the game?
PLease help me answer this question urgently
Answers
Answer:
64 units^2
Step-by-step explanation:
The area of a triangle is:
A = 1/2×base×height
For the base, any side can be the base and the corresponding height to go with it has to be perpendicular.
For this question, the left side, 16, will be the base. And the height will be 8.
Area = 1/2bh
= 1/2•16•8
= 64
my neighborhood is full of one-way streets. to drive from my house to the grocery store, i have to go 1 block south, then 1 block east, then 5 blocks north, then 2 blocks east. each block is of a mile. how much shorter would my trip be if i could fly like a bird?
Answers
if you could fly like a bird, your trip would be approximately 3.9 miles shorter than the route you currently have to take (9 - 5.1 = 3.9).
If you were able to fly like a bird, you could take a direct path from your house to the grocery store, which would be shorter than the route you currently have to take.
By looking at the given directions, we can see that you have to travel a total of 1+1+5+2=9 blocks, with each block being a mile long, so your total distance traveled is 9 miles.
If you could fly like a bird, you could take a straight-line path from your house to the grocery store, which would be the hypotenuse of a right triangle with sides of 1 block and 5 blocks. Using the Pythagorean theorem, we can calculate that the distance of the hypotenuse would be the square root of[tex](1^2 + 5^2)[/tex] = square root of 26, which is approximately 5.
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complete the table below
Answers
The complete table is :
10 40 12.4 150 360
200 800 248 320 768
What is table?In mathematics, a table is a way of organizing and presenting data in rows and columns.
The data is usually numerical or categorical, and the table allows us to compare and analyze the data in a structured way.
Tables can be used to display the results of calculations, record experimental data, or summarize information from surveys or questionnaires.
10x = 40 ×200
10x = 8000
x = 8000/10
x = 800
800x = 40 × 248
x = 12.4
150x = 320 × 360
x = 768
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12 ft
65 ft
33 ft
11 ft
20) Choose the correct answer.
Gracie covered her square playroom with 130.4 ft² of flooring. Which measurement is closest
to the side length of the playroom measured in feet?
Answers
The area of a square can be calculated by squaring the length of one of its sides. So, we can find the length of the side of the playroom by taking the square root of 130.4:
√130.4 ≈ 11.4
Therefore, the measurement closest to the side length of the playroom in feet is 11 ft. Answer: 11 ft.
quadratic equation y=(x+4)²+3
Answers
The graph of the quadratic function is plotted, in which Vertex (h,k) = (-4,3).
Explain about the quadratic function:In mathematics, a quadratic equation is one with degree 2, which means that its maximum exponent is 2. A quadratic has the formula y = ax2 + bx + c, where a, b, and c are all numbers and a cannot be zero.
Given quadratic function:
y = (x+4)²+3
Now, the equation in vertex form is:
y = a(x - h)² + k
(h,k) are the vertex.
On comparing:
a = 1, h = -4, and k = 3
Vertex (h,k) = (-4,3)
Decide on a number of points along the parabola, making sure to get points on each side of the parabola and replacing x with both positive and negative numbers.
The ideal mirror image is: y = (x+4)²+3
x = 0, y = 19
x = 1, y = 28
x = 2, y = 39
x = -4, y = 3
Plot the vertex together with the points you choose. With the vertex serving as the minimum point, draw a parabola (curve) it through points.
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Complete question:
Given quadratic equation y=(x+4)²+3. Plot the graph.
what is the mean mode and median of 5,5,5,6,9
Answers
Answer:
Mode: 5
Mean: 6
Median: 5
Step-by-step explanation:
- The mean is the sum of the data divided by the number of data points.
- The mode is the data point that appears most frequently.
- The median is the middle value in the sorted data set.
help asap assignment closes soon!
Answers
Answer:
Step-by-step explanation:
Given: d= 12 and h= 14
formula for the volume of a cone:
V= (1/3) · π · r² · h
V= volume
r= radius
h= height
to find the radius of the cone, we will use this formula r = 1/2 · d
r = 1/2 · 12
r = 6
Now that we know the value of the radius we can now plug it in in our formula.
V= (1/3) · π · 6² · 14
V= 1π · 6² · 14 / 3
V= 1π · 2²· 3² · 14 / 3
V= 2² · 14 · 3π
V= 2² · 14 · 3π
V= 2² · 42π
V= 4 · 42π
V= 168π
V=527.79
Hope this helps =D
Mrs Sweet has 8 different milk chocolates and 9 different plain chocolates.
-
Her daughter chooses one of the milk chocolates.
Her son then chooses one of the plain chocolates.
Mrs Sweet then chooses one of the remaining chocolates.
Work out how many different combinations of three chocolates they can choose.
Answers
There are 1008 different combinations of three chocolates that they can choose.
What is a combination?
Combination is a way of selecting objects from a larger set, where the order of the selected objects does not matter.
There are three separate choices to be made, so we need to multiply the number of choices for each step.
First, the daughter chooses one of the 8 milk chocolates. She has 8 options.
Next, the son chooses one of the 9 plain chocolates. He has 9 options.
Finally, Mrs. Sweet chooses one of the remaining 14 chocolates (8 milk and 9 plain chocolates have already been chosen). She has 14 options.
To find the total number of combinations, we multiply the number of choices for each step:
8 x 9 x 14 = 1008
Therefore, there are 1008 different combinations of three chocolates that they can choose.
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Can someone please answer these questions and explain how you got them
Answers
Answer:a) r >= -20
b) -10 <= x, or x >=-10
c) q<= 5
Step-by-step explanation:
a)-11r >=220
-11r/-11 >= 220/-11
r>=-20
b) -8<=-7+x/10
-8+7<=x/10
-1 <=x/10
-10 <=x
c) -1-6(5q-2)>=-139
-1 -30q +12 >= -139
-30q+12-1>=-139
-30q+11>=-139
-30q >= -139-11
-30q>= -151
-30q/-30 >= -151/-31
q <= 5,
u will notice the sign has changed from >= to <= it is coz when the negative signs erase themselves.
Solve for the unknown variable. Give all of the exact general solutions.
cosθ = sinθ
1 + sinθ = 2cos^2 (θ)
sin3θ = -1
Answers
Answer:
Solving for the unknown variable:
cosθ = sinθ
Dividing both sides by cosθ, we get:
tanθ = 1
Taking the inverse tangent of both sides, we get:
θ = π/4 + nπ, where n is an integer.
Therefore, the exact general solution is:
θ = π/4 + nπ, where n is an integer.
1 + sinθ = 2cos^2 (θ)
Using the identity cos^2 (θ) + sin^2 (θ) = 1, we can rewrite the equation as:
1 + sinθ = 2(1 - sin^2 (θ))
Expanding the right-hand side, we get:
1 + sinθ = 2 - 2sin^2 (θ)
Rearranging, we get:
2sin^2 (θ) + sinθ - 1 = 0
Using the quadratic formula, we get:
sinθ = (-1 ± √5)/4
Taking the inverse sine of both solutions, we get:
θ = arcsin [(-1 ± √5)/4] + 2nπ or π - arcsin [(-1 ± √5)/4] + 2nπ, where n is an integer.
Therefore, the exact general solution is:
θ = arcsin [(-1 ± √5)/4] + 2nπ or π - arcsin [(-1 ± √5)/4] + 2nπ, where n is an integer.
sin3θ = -1
Taking the inverse sine of both sides, we get:
3θ = (-1)^n (π/2) + 2nπ, where n is an integer.
Dividing both sides by 3, we get:
θ = (-1)^n (π/6) + (2nπ)/3, where n is an integer.
Therefore, the exact general solution is:
θ = (-1)^n (π/6) + (2nπ)/3, where n is an integer.
The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N=-0.3x^2+9x+13, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
Question content area bottom
Part 1
Ticket sales will peak ?
days after the concert was first announced.
Part 2
The number of tickets sold on that day will be ?
(Round to the nearest integer as needed.)
Answers
To find when the daily ticket sales will peak, we need to find the maximum value of the quadratic equation [tex]N &= -0.3x^2+9x+13[/tex].
How to calculate no. of ticket solds and peak ticket sales?
Part 1:
The maximum value of a quadratic equation of the form [tex]y &= ax^2 + bx + c[/tex] occurs at [tex]x = \frac{-b}{2a}[/tex]. So in our case, the peak day will be at:
[tex]x &= \frac{-9}{2(-0.3)} = 15[/tex]
Therefore, the peak will be reached 15 days after the concert was first announced.
Part 2:
To find the number of tickets sold on that day, we substitute x=15 into the equation [tex]N &= -0.3x^2+9x+13[/tex]:
[tex]N &= -0.3(15)^2 + 9(15) + 13 = 67[/tex]
So the number of tickets sold on the day of the peak will be 67.
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Find the lateral area of the pyramid
Answers
Answer:
The lateral surface area of the given square-based pyramid is 74 in².
Step-by-step explanation:
The lateral surface area of a three-dimensional object is the total surface area excluding the area of the base(s), so the total area of the "sides".
Therefore, the lateral surface area of a square-based pyramid is the sum of the area of the four triangular sides.
The area of a triangle is half the product of its base and height.
Therefore, the formula for the lateral surface area (L.S.A.) of a square-based pyramid is:
[tex]\boxed{\begin{minipage}{6 cm}\underline{L.S.A. of a square-based pyramid}\\\\$\sf L.S.A.= 2 \cdot s \cdot \ell$\\\\where:\\ \phantom{ww}$\bullet$ $s$ is the base length. \\ \phantom{ww}$\bullet$ $\ell$ is the slant height.\\\end{minipage}}[/tex]
From inspection of the given diagram:
[tex]\ell = \sf 7.4\;in[/tex][tex]s=\sf 5\;in[/tex]Substitute the given values into the formula to calculate the L.S.A. of the given square-based pyramid:
[tex]\begin{aligned}\implies \sf L.S.A.&=\sf 2 \cdot 5 \; in \cdot 7.4 \; in\\&=\sf 10 \; in \cdot 7.4 \; in\\&=\sf 74 \; in^2\end{aligned}[/tex]
Therefore, the lateral surface area is 74 in².
The lateral area of the pyramid is approximately 74square inches.
What defines a pyramid's horizontal side?
The triangular faces of the pyramid that converge at the apex are known as the lateral faces. These are the four triangles that encircle the square base in the provided net. As a result, the entire area of the four triangles makes up the pyramid's lateral surface area.
According to the given information:To find the lateral area of a pyramid, we need to find the sum of the areas of all the triangular faces except for the base. The lateral area formula for a pyramid is given by:Lateral area = 0.5 × Perimeter of base × Slant height where the slant height is the height of each triangular face.
First, let's find the perimeter of the base. Since the base is a square with a side length of 5.1 inches, its perimeter is:
Perimeter of base = 4 × Side length = 4 × 5.1 in = 20.4
In Next,
let's find the slant height. We can use the Pythagorean theorem to find the slant height of each triangular face.
The slant height is the hypotenuse of a right triangle with one leg equal to half the base length (since the base is a square) and the other leg equal to the height of the pyramid.
Half the base length = 5.1 in / 2 = 2.55
In Using the Pythagorean theorem, we get:Slant height = √(2.55² + 7²) ≈ 7.45 In Finally,
we can use the lateral area formula to find the lateral area of the pyramid:
Lateral area = 0.5 × Perimeter of base × Slant height= 0.5 × 20.4 in × 7.45 in≈ 76.02 in²
Therefore, the lateral area of the pyramid is approximately 76.02 square inches. Which is near to 74
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A step has a height of 5 inches. A ramp starts 4 feet away from the base of the step, making a 5.9° angle with the ground. What can
you say about the angle the ramp would make with the ground if the ramp starts farther away from the step?
Answers
the ramp gets further away from the step, the angle it has with the ground decreases.
θ = [tex]tan^{-1}[/tex](0.515 / (48 + x))
How to find the angle that the ramp would make with the ground?Assuming that the ramp remains the same height as the step, we can use trigonometry to find the angle that the ramp would make with the ground if it starts farther away from the step.
First, let's convert the distance from feet to inches, since the height of the step is given in inches: 4 feet = 48 inches.
Next, we can use the tangent function to find the angle theta:
tan(θ) = opposite / adjacent
where opposite is the height of the step (5 inches) and adjacent is the horizontal distance from the base of the step to the point where the ramp meets the ground (48 inches * tan(5.9°) = 5.514 inches).
So, tan(θ) = 5 / 5.514, which gives us θ = 41.2°.
Now, let's say the ramp starts at a distance x from the base of the step. We can use the same formula, but with a different value for adjacent:
tan(θ) = 5 / (48 + x) * tan(5.9°)
We can simplify this expression by substituting the value of tan(5.9°) as approximately 0.1032:
tan(θ) = 0.515 / (48 + x)
Solving for theta, we get:
θ = [tex]tan^{-1}[/tex](0.515 / (48 + x))
As a result, we can see that the denominator of the fraction within the arctan function gets larger as x increases (i.e., the ramp starts further from the step), resulting in a smaller fraction and, consequently, a smaller angle theta. To put it another way, as the ramp gets further away from the step, the angle it has with the ground decreases.
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The price of a laptop was marked 80 percent off because it had a cracked screen. If the resulted in a savings of $600, what is the value of x in the table above?
Answers
Answer:
$750
Step-by-step explanation:
.8x = $600, so x = $750
Meadow View State Park has a great nature program for students. The ranger has a deck of 50 flash cards of things that they can see while visiting the park. He shuffles the deck and holds up 14 randomly chosen flash cards to show the students before putting them back in the deck. Here are the types of cards he has shown so far:
tree, animal, tree, rock, insect, tree, rock, animal, animal, tree, rock, tree, insect, tree
Based on the data, estimate how many tree cards are in the deck.
Answers
Answer:21 tree cards
Step-by-step explanation:
suppose you are conducting a hypothesis test to determine if a new marketing campaign increases sales for a particular product. what are the two types of errors you might make in conducting this test? (select all that apply)
Answers
The two types of errors you might make in conducting hypothesis test is type I error occurs when we conclude that the new marketing campaign does not increase sales when it actually does, This would lead to missed opportunities for increased sales and revenue for the company. Type II error occurs when we conclude that the new marketing campaign does not increase sales when it actually does, This would lead to missed opportunities for increased sales and revenue for the company. So, the correct option is A) and D).
Type I error is also known as a "false positive" error, where we reject the null hypothesis (i.e., conclude that the marketing campaign does increase sales) when it is actually false (i.e., the campaign does not have an effect on sales). This would lead to missed opportunities for increased sales and revenue for the company.
Type II error is also known as a "false negative" error, where we fail to reject the null hypothesis (i.e., conclude that the marketing campaign does not increase sales) when it is actually false (i.e., the campaign does have an effect on sales). This would also lead to missed opportunities for increased sales and revenue for the company.
Therefore, it is important to choose an appropriate significance level (alpha) and calculate the power of the test to minimize the risk of both types of errors in a hypothesis test. The correct answers are (A) and (D).
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--The given question is incomplete, the complete question is given
"Suppose you are conducting a hypothesis test to determine if a new marketing campaign increases sales for a particular product. What are the two types of errors you might make in conducting this test? (select all that apply)
a) A type I error occurs when we conclude that the new marketing campaign does not increase sales when it actually does. This would lead to missed opportunities for increased sales and revenue for the company.
b) A type II error occurs when we conclude that the new marketing campaign increases sales when it actually does not. This would lead to wasted resources on the marketing campaign and potentially lost sales if the company shifts resources away from a successful strategy.
c) A type I error occurs when we conclude that the new marketing campaign increases sales when it actually does not. This would lead to wasted resources on the marketing campaign and potentially lost sales if the company shifts resources away from a successful strategy.
d) A type II error occurs when we conclude that the new marketing campaign does not increase sales when it actually does. This would lead to missed opportunities for increased sales and revenue for the company."--
higher levels of confidence generally require: question 8 options: wider confidence intervals. narrower confidence intervals. a smaller standard error. unbiased estimates.
Answers
The correct answer is wider confidence intervals.
Why higher levels of confidence generally require wider confidence intervals?In statistics, a confidence interval is a range of values that is likely to contain the true population parameter with a certain degree of confidence. The level of confidence is typically set at 90%, 95%, or 99%, and represents the percentage of intervals that would contain the true parameter if we were to repeat the sampling process many times.
Higher levels of confidence mean that we are more certain that the true parameter falls within the interval. However, achieving higher levels of confidence requires larger sample sizes or larger standard errors, which in turn leads to wider confidence intervals.
To understand this, consider the formula for a confidence interval:
CI = point estimate ± margin of error
The margin of error is a function of the sample size and the standard error. As the sample size increases or the standard error decreases, the margin of error decreases, which leads to a narrower confidence interval. Conversely, if we want to increase the level of confidence, we need to increase the margin of error, which requires either a larger sample size or a larger standard error, leading to wider confidence intervals.
Therefore, higher levels of confidence generally require wider confidence intervals, which means we are less precise in our estimate but more certain that the true parameter falls within the interval.
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Follow this link to view Jamie’s work. Critique Jamie’s work by explaining the reasonableness of the scenario and the accuracy of the two parts of the graph he described . For any portion of Jamie’s response in which he has made an error, provide and explain an alternative response.
To enhance Jamie’s explanation, describe both sections of the piecewise function using linear equations. Include any limits to the domain.
Answers
Using the graph,
The 1st statement is true as we can see from the graph the runner starts at origin 0 and till it reaches the point (12,1) it grows steadily as the graph is steep and increasing as we move forward.
This 2nd statement is also true as we can see in the graph that the 2nd runner's graph is a lot steeper than the 1st runner & stops at a point (20,2).
Define graph?An organised representation of the data is all that the graph is. It facilitates our understanding of the facts. Data is the term used to describe the numerical information obtained through observation.
In the first statement:
It says that the runner begins the race & runs at a steady pace for 1 minute.
This statement is true as we can see from the graph the runner starts at origin 0 and till it reaches the point (12,1) it grows steadily as the graph is steep and increasing as we move forward.
Now in the 2nd statement it says, another runner runs from point (12,1) and runs at a steady but faster pace for 1 minute.
This statement is also true as we can see in the graph that the 2nd runner's graph is a lot steeper than the 1st runner.
So, the 2nd runner is going faster than the 1st and we can see that the 2nd runner stops at a point (20,2).
That shows the 2nd runner also ran for 1 minute.
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3. A man earns # 140 000 per annum. He is allowed a tax free pay of # 30 000. If he pays 25 kobo in the naira as tax on his taxable income, how much has he left as disposable income?
4. A discount of 15% is allowed on an article. If a customer received N600.00, find the actual amount paid on the article.
Answers
the man has #112,500 left as disposable income after paying taxes.
the actual amount paid on the article after the 15% discount is N600.00.
How to calculate the disposable income?To calculate the disposable income of the man, we first need to determine his taxable income.
Taxable income = Annual income - Tax-free pay
Taxable income = #140,000 - #30,000 = #110,000
Next, we need to calculate the tax he has to pay on his taxable income.
Tax = Tax rate x Taxable income
Note that the tax rate is given in kobo, so we need to convert it to naira.
1 naira = 100 kobo, so 25 kobo = 0.25 naira
Tax = 0.25 x #110,000 = #27,500
Finally, we can calculate the disposable income by subtracting the tax from the annual income.
Disposable income = Annual income - Tax
Disposable income = #140,000 - #27,500 = #112,500
Therefore, the man has #112,500 left as disposable income after paying taxes.
4.If the discount allowed on an article is 15%, it means that the customer will pay only 85% of the original price of the article after the discount is applied.
Let the original price of the article be P.
Then, the amount paid by the customer after the 15% discount is 85% of the original price:
Amount paid = 0.85P
We know that the customer received N600.00.
So, we can set up an equation:
0.85P = N600.00
Solving for P, we get:
P = N600.00 / 0.85
P = N705.88 (rounded to two decimal places)
Therefore, the actual amount paid on the article after the 15% discount is N600.00.
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Mrs. Kelley is teaching a 5th grade class. She is standing 6 meters in front of Gabrielle. Leslie is sitting to Gabrielle's right. If Leslie and Mrs. Kelley are 7 meters apart, how far apart are Gabrielle and Leslie? If necessary, round to the nearest tenth.
Answers
Gabrielle and Leslie are approximately 9.2 meters apart, rounded to the nearest tenth, given that Mrs. Kelley is standing 6 meters in front of Gabrielle and Leslie and Mrs. Kelley and Leslie are 7 meters apart.
Where M represents Mrs. Kelley, G represents Gabrielle, and L represents Leslie.
We can see that a right triangle is formed by Gabrielle, Mrs. Kelley, and the distance between Gabrielle and Leslie. We can use the Pythagorean theorem to find the missing side:
[tex]c^2 = a^2 + b^2[/tex]
where c is the distance between Gabrielle and Leslie, a is 6 meters (the distance between Mrs. Kelley and Gabrielle), and b is the distance between Mrs. Kelley and Leslie (which is equal to 7 meters).
Substituting the values, we get:
[tex]c^2 = 6^2 + 7^2[/tex]
[tex]c^2[/tex] = 36 + 49
[tex]c^2[/tex] = 85
Taking the square root of both sides, we get:
c ≈ 9.2
Therefore, Gabrielle and Leslie are approximately 9.2 meters apart, rounded to the nearest tenth.
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