Answers
Answer:
10 units ^2
Step-by-step explanation:
Area 1:
A = lw
= 2 * 5 = 10
Related Questions
You are conducting a survey on the number of pets per household in your region. From a sample with n = 40, the mean number of pets per household is 2 pets and the standard deviation is 1 pet. Using chebyshev's theorem, determine at least how many of the households have 0 to 4 pets
Answers
At least 30 of the households have 0 to 4 pets.
What is Chebyshev's theorem?
The minimum percentage of observations that are within a given range of standard deviations from the mean is calculated using Chebyshev's Theorem. Numerous other probability distributions can be applied to this theorem. Chebyshev's Inequality is another name for Chebyshev's Theorem.
Here,
we have a sample size of n = 40.
The mean number of pets per household is 2 and the standard deviation is 1.
We need to determine at least how many of the households have 0 to 4 pets.
By using Chebyshev’s inequality rule with k = 2(that is ) then,
= 100(1- (1/k²))%
= 100 (1- (1/2²))%
= 100 (1- (1/4))%
= 75%
The corresponding number of households is the percentage multiplied by the sample size.
= 75% × 40 = 30
Hence, at least 30 of the households have 0 to 4 pets.
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hey can I get some help thanks :)
What is the distance between the points X(-4,3) and Y(2, -7) rounded to the nearest tenth?
O 11.7 units
0 8.0 units
0 16.0 units
O 4.5 units
Answers
Answer:
I think the answer is 11.7 units rounded to nearest tenth
Step-by-step explanation:
d=(2−(−4))2+(−7−3)2−−−−−−−−−−−−−−−−−−−√
d=(6)2+(−10)2−−−−−−−−−−−√
d=36+100−−−−−−−√
d=1–√36
d=11.661904
i have to use factorisation in every one of these but im so stuck i dont remember anything. i hope someone could at least solve one of these. i have only the exercises that are noted
16 POINTS
Answers
Answer:
12.
V. E=(1-a)(1+a)(1+a^2)(1+a^4)(1+a^8)
Step-by-step explanation:
1-a^16=(1-a^8)(1+a^8)
1-a^8=(1-a^4)(1+a^4)
1-a^4=(1-a^2)(1+a^2)
1-a^2=(1-a)(1+a)
1-a^16=(1-a)(1+a)(1+a^2)(1+a^4)(1+a^8)
3x+2y=28,5x-3y=15 URGENTLY
Answers
Answer:
(6, 5 )
Step-by-step explanation:
3x + 2y = 28 → (1)
5x - 3y = 15 → (2)
multiplying (1) by 3 and (2) by 2 and adding the result will eliminate y
9x + 6y = 84 → (3)
10x - 6y = 30 → (4)
add (3) and (4) term by term to eliminate y
19x + 0 = 114
19x = 114 ( divide both sides by 19 )
x = 6
substitute x = 6 into either of the 2 equations and solve for y
substituting into (1)
3(6) + 2y = 28
18 + 2y = 28 ( subtract 18 from both sides )
2y = 10 ( divide both sides by 2 )
y = 5
solution is (6, 5 )
whats the answer? someone please tell me i need help
Answers
Answer:
x° = 48°
Step-by-step explanation:
In order to solve this, we need to know that the sum of all inner angles of the triangle is equal to 180°. Based on this diagram we know that...
180° = 90° + 42° + x°
From here we know that...
x° = 180° - 90° - 42°
x° = 48°
How do u solve this?
Answers
Answer: [tex]3x^4 / 2y^4[/tex]
Step-by-step explanation: [tex](3x7x^6y^5)divide(2x7x^2y^9)[/tex] then [tex]x^6 divided by x^2 = x(^6 ^- ^2) = x^4[/tex] then
[tex]y^5 divided by y^9 = y(^5 ^- ^9) = y(^-^4) = 1/y^4[/tex] then
Canceling out 7 as it appears on both sides of the fraction line.
Hope this is clear and is helpful
What is the volume of a rectangular prism with the dimensions, base
12
cm, height em, and length
cm
Answers
2/3 x 1/2 x 3/4
= 2/6 x 3/4
= 6/24
reduced is 1/4 cm^3
A dumpster is shaped like a rectangular prism. It has a width of 8 feet, a height of 5 feet, and a volume of 880 cubic feet. What is the length of the dumpster
Answers
V=l•w•h, where V is volume, l is length, w is width, and h is height.
So, we can input the known values into the formula and solve for the unknown values since we already have the volume.
(880)=l•(8)•(5)
Simplify:
880=l•40
l•40 = 40l
880=40l
Solve for l:
Divide both sides by 40:
880/40=l
22=l
Apply the symmetric property:
l=22
Now, let’s plug the length back into the volume formula and check that it is correct:
880=(22)•8•5
880=880
So, our answer is correct.
Answer: the length is 22 feet.
Jim has a toolbox with a volume of 9,072 cubic inches. The height of the toolbox is 14 inches and the width of toolbox is 1 foot.
Answers
Answer: [tex]54\ in.[/tex]
Step-by-step explanation:
Given
The volume of the toolbox is [tex]9072\ in.^3[/tex]
The height of the toolbox is [tex]h=14\ in.[/tex]
The width of the toolbox is [tex]w=1\ ft\ or\ 12\ in.[/tex]
Suppose the length of the box is [tex]l[/tex]
The volume of the toolbox is given by [tex]V=l\times w\times h[/tex]
Insert the value to find the length
[tex]\Rightarrow 9072=14\times 12\times l\\\\\Rightarrow l=\dfrac{9072}{168}\\\\\Rightarrow l=54\ in.[/tex]
The length of the box is [tex]54\ in.[/tex]
Answer:
45
Step-by-step explanation:
What is the surface area of a cone that is 10m tall and has a radius of 6
Answers
Answer:
332.92 m
Step-by-step explanation:
A=πrl+πr2
whoever helps me with this will get 10 points.
Answers
Answer:
The answer is 1/4.
I wish you good luck.
Answer: it's hard i thought i could do it but nope dang it
Evaluate 8+\dfrac{w}48+
4
w
8, plus, start fraction, w, divided by, 4, end fraction when w=16w=16w, equals, 16
Answers
After evaluating the value of 8 + w/4 = 12.
In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.When performing calculations but unsure of the precise amount, algebra is used.
Equations come in two varieties which are identities and conditional equations. All possible values of the variables result in an identity. Only certain combinations of the variables' values make a conditional equation true.
as the details given,
the equation given is 8 + w/4
the value of w is 16
by placing the value of w in the given equation we get
=> 8 + 16/4
=> 8 + 4
=> 12
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What is a opposite of 7?
Answers
-7 is the opposite of 7.
Simply adding a negative sign yields the negative number 7, which is the opposite of the positive number 7. 7 and 7 are the opposites of one another since they are both seven units apart from 0 on the number line.
The inverse of a number is the number on the other side of the 0 number line and at the same distance from 0. Oppositely positioned numbers on the number line. The opposite of an integer is its additive inverse. As a result, on a number line, the opposite of a number is the number that is located in the other direction from 0 but at the same distance from it.
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(Need asap plz)
You want to know the mean number of sick days taken by students in your county last year. At each of five schools you randomly survey ten students. Your results are shown. Use all five samples to make one estimate for the mean number sick days taken by students in your county last year.
A: 0, 1, 1, 3, 0, 3, 0, 2, 3, 4
B: 0, 0, 0, 5, 21, 6, 8, 1, 2, 4
C: 11, 8, 1, 1, 0, 0, 4, 4, 4, 6
D: 8, 0, 10, 8, 6, 7, 9, 2, 1, 1
E: 2, 4, 5, 0, 5, 0, 5, 4, 0, 20
__ Days?
Answers
Step-by-step explanation:
add up all of the numbers in the five groups then divide the numbers by the number of numbers you have for example if the sum of all of those numbers is let's a 25 and you have 5 numbers you'll divide 25 by 5 and your men will be 5:00 and if the sum of the numbers was 30 and you have six numbers you'll / 30by6 then your answer then the mean will be six
Answer:
I don't know which school you are asking for, so here are all of them, followed by the general mean of all the schools.
a: 1.7
b: 4.7
c: 3.9
d: 5.3
e: 4.5
gen: 4
Step-by-step explanation:
This is easiest to solve with a calculator.
When finding the mean, you need to add all the numbers together, then divide by how many numbers you added.
Let's say that you have the numbers 2, 5, and 8. You add them together to get 15, then divide 15 by 3. The mean is 5.
With your problem, the general mean of all 5 schools is 4.
Hope that this helps!
Help meee!!!!!!!
Plssssss
Answers
Answer:
106.8
Step-by-step explanation:
72 × 2 = 34
34 × 3.14 or
[tex]\pi[/tex]
106.76 round to the nearest tenth
= 106.8
Help!!!!!!!!!!!!!!!!!!
Answers
Answer:
d. a f
Step-by-step explanation:
i hope this helps :)
Answer:
D. A F
Step-by-step explanation:
It is a line all the way across the center of the circle (the definition of a diameter of a circle)
The equation yˆ=−2. 5x+222. 5 models the amount of cholesterol, LDL , for a person, in mg/dl , where x is the time spent exercising per day, in minutes. According to the regression equation, what is the amount of cholesterol for a person exercising 20 minutes a day?
61. 5 mg/dl
81. 5 mg/dl
172. 5 mg/dl
272. 5. 5 mg/dl
Answers
The equation y^ = -2.5x + 222.5 models the amount of cholesterol, LDL, for a person in mg/dl, where x is the time spent exercising per day in minutes.
What in mathematics is a quadratic equation?
Definitions: x ax2 + bx + c = 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. a 0. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem. The answer could be simple or complicated.
To find the amount of cholesterol for a person exercising 20 minutes a day, we need to substitute x = 20 into the equation:
y^ = -2.5(20) + 222.5
Solving this equation, we get:
y^ = -50 + 222.5
y^ = 172.5
So, the amount of cholesterol for a person exercising 20 minutes a day is 172.5 mg/dl.
Therefore, the answer is 172.5 mg/dl
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Radicals help please
Answers
Consequently, the answer to the above fraction problem comes out to be 1/2 .
What is fraction?An element of a fraction or ratio is a piece of a whole. The number of equally sized pieces into which the whole has been divided is represented by the denominator b, and the number of parts that are included is represented by the numerator a. The LCM of two fractions' denominators is the least common multiple (LCD) of those denominators.
Here,
Given here is: (4√(2) - √(2)) × √(2) / (2) (2) × √(18) (18)
The radical is then simplified in order to determine its value.
=> 3√(2) × √(2) / 2√(2) × 3√(2)
=> 3(2) / 6(2)
=> 3/6
=> 1/2 or 0.5
so,
after simplification, the answer is 1/2.
Consequently, the answer to the above fractional problem comes out to be 1/2 .
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Simplifying algebraic expression
Answers
Answer:
-33
Step-by-step explanation:
Given algebraic expression:
[tex]5c-9c+3[/tex]
To simplify the given algebraic expression using c = 9, substitute the given value of "c" into the expression and solve:
[tex]\implies 5(9)-9(9)+3[/tex]
[tex]\implies 45-81+3[/tex]
[tex]\implies -36+3[/tex]
[tex]\implies -33[/tex]
Answer:
[tex] \sf \: 5c - 9c + 3 = - 33[/tex]
Step-by-step explanation:
Given information,
→ 5c - 9c + 3
→ where c = 9
Let's simplify the expression,
→ 5c - 9c + 3
→ 5(9) - 9(9) + 3
→ (5 × 9) - (9 × 9) + 3
→ 45 - 81 + 3
→ 45 - 78
→ -33 => final value
Hence, the final value is -33.
Devin drove her truck. The fuel remaining in the truck's tank (in liters) as a function of distance (in kilometers) is graphed.
What is the approximate average fuel consumption rate, between the 100th kilometer and 400th kilometer?
Answers
Between the 100th and 400th kilometers, the average fuel consumption rate is 5/6 liters per kilometer.
What is the rate of change?A consequence of dividing the variation in a variable's function by the variation in the variable. For example The rate at which a distance changes in relation to time is known as velocity.
Given, Devin drove her truck. The fuel remaining in the truck's tank (in liters) as a function of distance (in kilometers) is graphed.
Since in the domain [100, 400] graph shows somewhat linear properties.
from the graph Fuel consumption at 100 = 375 liters
Fuel consumption at 400 = 125 liters
rate in a linear function between two points = (y₂ - y₁)/ (x₂ - x₁)
thus rate between [100, 400] = (375-125)/400-100
rate between [100, 400] = 250/300
rate between [100, 400] = 5/6litere per kilometer
therefore, the average fuel consumption rate, between the 100th kilometer and 400th kilometer is 5/6 liters per kilometer.
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what is -18 + (-45) + 12
Answers
Answer:
-51
Step-by-step explanation:
hope it helps you! good luck!
Two vehicles start from the same point traveling in the same direction. One vehicle travels 55.5 miles per hour (mph) and the other 45 ¼ mph. When will the two cars be 350 miles apart?
Answers
The number of hours after which the cars will be 350 miles apart is 34 hours.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
Vehicle 1.
Speed = 55.5 mph
Distance(1) = 55.5 x Time
Vehicle 2.
Speed = 45(1/4) mph
Distance(2) = 45(1/4) x Time
The difference in the distance = 350 miles.
Distance(1) - Distance(2) = 350
55.5 x Time - 45(1/4) x Time = 350
55.5 x Time - (181/4) x Time = 350
(55.5 - 181/4) x Time = 350
Time = 350 / (55.5 - 45.25)
Time = 350 / 10.25
Time = 34 hours.
Thus,
The car will be 350 miles apart after 34 hours.
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Find m.
Kindly help
Answers
Answer:
m=3.6
Step-by-step explanation:
Complete the following:
Write a number less than 40 that has at least six factors.
List at least six factors of the number you choose.
Answers
1,2,3,4,6,9,12,18
Hope this helps:)
(−2x+10)+(−8x−1)(-2x+10)+(-8x-1) .
Answers
Answer:I know why your father never came back
Step-by-step explanation: So when he got the milk he got stuck in traffic for a long time which caused the milk to expire and so he went back to grab new milk and on his way home he was stuck in traffic again and the milk got expired so he repeats the process and the same thing happens over and over and over, so hes stuck in an infinite loop until he passes away.
Work out 7 - 10 = 2 + (-4 + 2).
Answers
Answer:
0
Step-by-step explanation:
7-10=2+(-4+2)
-3=2+(-2)
-3=0
Take the 7 - 10 is -3 and then you add the rest
Gio weighed 5 boxes before he shipped them, the weights were: 52, 48, 48, 54, and 50 What statement is true
Answers
I need help with this,, will give brianliest and +15 points
Answers
Answer:
41x² - 27x + 27
Step-by-step explanation:
Perimeter of Rectangle:
= 2(20x²-12x+4) + 2(5x²-5x+15)
= 40x²-24x+8 + 10x²-10x+30
= 50x²-34x+38
Perimeter of Triangle:
= 6x²+6x+3x+3+3x²-2x+8
= 9x²+7x+11
Difference:
(50x²-9x²)+(-34x+7x)+(38-11)
= 41x² - 27x + 27
The table below shows the number of animals at a local petting zoo.
Animal
Goats
Number
3
Ponies
3
Rabbits
8
Sheep
6
0/1
Write the ratio of ponies and goats to rabbits and
sheep.
You may write the ratio in ANY of the three forms. Remember to REDUCE the ratio, if
possible.
Answers
Answer:
3/7
Step-by-step explanation:
3 ponies + 3 goats = 6 total
8 rabbit + 6 sheep = 14 total
6/14 simplified is 3/7.
Please help☡☡
A drawing of a sailboat was made using a rectangle and two right triangles, as shown. ,6 cm 2 cm 3 cm 2.5 cm 12 cm What is the area of the drawing of the sailboat square centimeters? 15 cm2 30 cm2 45 cm2 60 cm2
Answers
Answer:
45cm2
Step-by-step explanation:
My teacher reveiwed this problem after the test :)