find circumference of the circle whose parameter is 14 cm
Find the circumference of a circle with diameter 14 cm
What are the roots of the equation d^2+11d−42=0?
Answer:
(3, 0) and (-14, 0)
Step-by-step explanation:
Just factorise the equationYou get [tex](d-3)(d+14)=0[/tex][tex]d = 3\ or -14[/tex]Roots are (3, 0) and (-14, 0)Find the area of the triangle.
4 cm
3 cm
The area is
square centimeters.
Answer:
the area is 6cm2
Step-by-step explanation:
1/2 bh
1/2 4 x 3
1/2 12
6
How many milliliters are in 4 liters?
40,000 mL
400 mL
40 mL
4,000 mL
Answer:
4000 mL
Step-by-step explanation:
there are 1000 millilitres in 1 liter
in 4 liters there would be 1000 * 4 = 4000 millilitres
Answer:
4,000 ml
Step-by-step explanation:
hope this helps *_* :)
Write 4 7/10 as an improper fraction
Answer:
47/10
Step-by-step explanation:
[tex]4\frac{7}{10} =\frac{(4)(10)+7}{10} =\frac{47}{10}[/tex]
Hope this helps
Answer:
47/10
Step-by-step explanation:
Hello!
To convert a mixed number to an improper fraction, we:
multiply the denominator by the whole numberadd the numerator to the productput the result over the original denominatorLet's simplify:
4 7/104*10 = 4040 + 7 = 4747/10Another way to represent this:
[tex]4\frac7{10}[/tex][tex]\frac{4*10 + 7}{10}[/tex][tex]\frac{47}{10}[/tex]Your answer is 47/10
how you would find the area of a triangle when given the base and height
Jenny has six cards.
Each card has a whole number written on it so that the smallest number is 5
the largest number is 24
the median of the six numbers is 14
the mode of the six numbers is 8
Jenny arranges her cards so that the numbers are in order of size.
5,-,-,-,-,24.
(a) For the remaining four cards, write on each line a number that could be on the card.
Mean is the ratio of the sum of data to the ample size. The remaining four cards that could be on the card are 8, 8, 16 and 22
Measure of dispersionMean is the ratio of the sum of data to the ample size. Median is the middle number after rearrangement while the mode is the most occurring number.
Given the sequence of numbers in order of size as 5, _, _, _, _ 24
Since 2 number falls in the middle and the median is 14, hence:
x +y/2 = 14
Since 8 is the mode, we can assume x = 8 in order to determine "y" as shown
8+y/2 = 14
8+y = 28
y = 16
The sequence of numbers will become 5, 8, 8, 16, _ 24 (8 was repeated twice being the mode)
The last unknown number can then be any value between 16 and 24. Using 22 as the last unknown value, the remaining four cards that could be on the card are 8, 8, 16 and 22
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Can someone help me with this
Answer:
☑ 3 is a constant.
☑ 5 is a coefficient
Step-by-step explanation:
It is a sum of two terms.
It a product of different terms
5 and 4 are coefficients.
Help help help math math math
Answer:
I think yes is the correct answer
Step-by-step explanation:
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE let
Answer:
Yes
Step-by-step explanation:
Because they are different
The area of the triangle below is 25.5 square inches. What is the length of the base?
Answer:
i got 8.5
Step-by-step explanation
i have a triangle area calculator lol..
The length of the base of the triangle is B = 8.5 inches
What is a Triangle?A triangle is a plane figure or polygon with three sides and three angles.
A Triangle has three vertices and the sum of the interior angles add up to 180°
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x Length x Base
For a right angle triangle
From the Pythagoras Theorem , The hypotenuse² = base² + height²
if a² + b² = c² , it is a right triangle
if a² + b² < c² , it is an obtuse triangle
if a² + b² > c² , it is an acute triangle
Given data ,
Let the area of the triangle be A = 25.5 inches²
Let the height of the triangle be H = 6 inches
Let the base of the triangle be B
Now , area of the triangle = ( 1/2 ) x Length x Base
On simplifying , we get
25.5 = ( 1/2 ) x ( 6 ) x ( B )
On simplifying , we get
3B = 25.5
Divide by 3 on both sides , we get
B = 8.5 inches
Hence , the base of triangle is B = 8.5 inches
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you have to substitute the equation. sub y=1x-1 into the other equation.
Answer:
-y = x-1 is a fairly simple equation at least with real integers.
I hope to help you understand the process of solving it so you can apply the thinking to increasingly difficult equations. If this equation is difficult for you, I will try to explain it simply.
let's try a simple trick. If you want to solve for y, then it's helpful to remove the negative from it.
that means you need to do the same thing to the x side, but since x is already positive it needs to change to -x to balance things out.
the equation now reads y = -x+1 because we have reversed the negative and positive values on both sides of the equation.
I hope this helps simplify the thinking behind solving an equation of this nature. The two previous answers above this one are both correct, but may be just a tad more complex than you need at this moment.
Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 + 5x – 1.
here it is !
Step-by-step explanation:
must find x and then using x to find y
Help PLEASE PLEASE IMBEGGING
Answer:
last statement is correct.
Answer:
D is correct
Step-by-step explanation:
Brainliest would be appreciated
what is the digit 9 in this number 195,487
Answer:
90,000 is the answer to that question
Answer:
its in the 10,000 digit placement.
Step-by-step explanation:
100, 000
90,000
5,000
400
80
7
Hope this helped! Have a nice day!
Please give Brainliest when you can.
-Jaron, King of Carthya.
find the figure of the perimeter. Use 3.14 for pi. The figure is not to scale, round to at least one decimal place. NO LINKS!!!
Answer:
24.8 ft (1 dp)
Step-by-step explanation:
Arc length of semicircle = [tex]\pi r[/tex] (where r is the radius)
Given:
diameter = 4 ft⇒ radius = 4 ÷ 2 = 2ft[tex]\pi[/tex] = 3.14⇒ Arc length = 2 × 3.14 = 6.28 ft
Use Pythagoras' Theorem [tex]a^2+b^2=c^2[/tex] to find the hypotenuse of the right triangle with legs 2 ft and 4 ft:
[tex]\implies 2^2+4^2=c^2[/tex]
[tex]\implies c^2=20[/tex]
[tex]\implies c=\sqrt{20}=2\sqrt{5}\:\sf ft[/tex]
Therefore:
perimeter = 6 + 6.28 + 6 + 2 + 2√5
= 24.75213596...
= 24.8 ft (1 dp)
Perimeter of semicircle
πr2π6.28#Rectangle
2(6+4)2(10)20ft-4(2)=12ftFor triangle
Use Pythagorean theorem
H²=4²+²=16+4=20H=4.5Total Perimeter
12+6.5+6.2824.78ftA teacher wants to assign 4 of the 15 practice problems at the end of the lesson. How many different assignments are possible?
Answer:
3?
Actually I dont understand
The number of different assignments that are possible for this case when the teacher wants to assign 4 of the 15 practice problems is 1,365 ways.
How many ways k things out of m different things (m ≥ k) can be chosen if order of the chosen things doesn't matter?We can use combinations for this case,
Total number of distinguishable things is m.
Out of those m things, k things are to be chosen such that their order doesn't matter.
This can be done in total of
[tex]^mC_k = \dfrac{m!}{k! \times (m-k)!}[/tex] ways.
For this case, the teacher have to choose 4 problems out of 15 practice problems so that assignments are different.
An assignment would be different than other if the 4 questions in one assigment are not exactly same in the second assigment, and their order won't matter (assumingly).(no counter statement is given in the question's statement) against this assumption).
Those 15 problems are assumingly distinguishable (here we used general logic that each problem would be somewhat different if not fully, and thus, no two problems being indistinguishable).
Then, we can use the combinations to find the number of ways any 4 problems out of 15 practice problems available can be chosen, as shown below:
[tex]^{15}C_4= \dfrac{15!}{4! \times (15-4)!}\\\\\\^{15}C_4=\dfrac{15!}{4! \times 11!} = \dfrac{15 \times 14 \times 13 \times 12 \times 11 \times \cdots \times 2 \times 1}{(4 \times 3 \times 2 \times 1) \times ( 11 \times \cdots \times 2 \times 1)}\\\\\\^{15}C_4=\dfrac{15 \times 14 \times 13 \times 12 }{4 \times 3 \times 2 \times 1} = 1365[/tex]
Thus, the number of different assignments that are possible for this case when the teacher wants to assign 4 of the 15 practice problems is 1,365 ways.
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A scientist is studying the effect of different types of soll on the height of plants. All plants were of the
same type and were planted at the same time. The scientist randomly selected 50 plants grown in each of
5 different soil types and recorded the heights of the plants in centimeters. The box plots for the soil
samples are shown.
Plant Height (centimeters)
Sample R
Samples
Sample T
Sample U
Sample V
++++
18 19 20 21 22 23 24 25 26 27 28 29 30 31
Which box plot suggests that the median of the population differs substantially from the median of the
population for Sample R?
O A. Samples
OB. Sample T
O C. Sample U
o D. Sample V
Answer:
Sample T ( B)
Write an adaptive organ of a duck.
Duck Feet. Duck feet are visually obvious adaptations. All duck species have webbed feet that help them swim. These feet extend laterally when a duck pushes back with its legs and provide maximum surface area for increased efficiency in movement.
hope it helps...!!!
Write an equation for the line shown in the graph.
0
2345
A 10 = 4x
B. y = 2x + 10
C. y= 10x - 2
D. y=-x + 10
Answer:
y = -x+10
Step-by-step explanation:
We have a point at ( 2,8) and a point at ( 4,6)
We can find the slope using
m = ( y2-y1)/(x2-x1)
= ( 6-8)/ ( 4-2)
= -2/2
= -1
The slope is -1
We can see that it intercepts the y axis at 10 ( x=0 point)
Using the slope intercept form y = mx+b where m is the slope and b is the y intercept
y = -x+10
What is the inverse of the function F (X) equals 2X +1
Answer: [tex]f^{-1}(x)=\frac{x-1}{2}[/tex]
Step-by-step explanation:
To find the inverse of a function start by replacing f(x) with x and replace the original x with y.
[tex]f(x)=2x+1\\x=2y+1[/tex]
Now solve for y
[tex]x=2y+1\\x-1=2y+1-1\\x-1=2y\\\frac{x-1}{2} =\frac{2y}{2}\\\frac{x-1}{2} =y[/tex]
Finally, replace y with the inverse of f(x), [tex]f^{-1}(x)[/tex]
I dont understand this equation
Let's first look only at the numerator: 5x^2 - 5
Consider this question: What do both terms have in common?
The answer is 5, both terms contain a 5, so we can factor it out.
5(x^2 - 1)
Now let's look at the denominator, considering the same question: 3x^2 + 3x
This time, both terms contain a 3 and an x.
3x(x^2 + 1)
Now we are here: [ 5(x^2 - 1) ] / [ 3x(x + 1) ]
In the numerator, the binomial factors out into (x + 1)(x - 1). There is also an (x + 1) in the denominator, so those to binomials cancel out. That leaves us with the following expression:
5(x - 1) / 3x
Correct Answer: C
Hope this helps!
30 POINTS PLEASE HELP
This table shows a proportional relationship between x and y Find the constant if personality (r). Using the value for r, enter an equation in the form y =rx
Answer:
y=rx x-3
Step-by-step explanation:
answer is 3
A cube has a volume of 216 cubic inches. What is the length of each edge of the cube? Explain how you solved it.
A. 9 in.
B. 6 in.
C. 4 in.
D. 3 in.
Answer:
B.
Step-by-step explanation[tex]\sqrt[3]{216} =6[/tex]
really need help very confused
55 points
The area is 4(x+3). If we multiply the 4 out we have 4x + 12 as the area using the distributive property.
Expression: 4x+12
The original dimensions are x+3 and 4. If they are doubled, we have new dimensions 2x+6 and 8. The area is then 8(2x+6) = 16x + 48.
Area: 16x+48
Explanation: The ratio of the area of the original rectangle to the area of the larger rectangle is and will always be (4x+12)/(16x+48) = 1/4. Therefore, the ratio will be the same for any positive value of x.
._. somebody help me
Answer:
the first option, acute
Step-by-step explanation:
a straight line is equal to 180
34+64=96
180-96=84
84 degrees so its an acute angle
can someone please help me with this question?
Answer:
5.49 inches[tex] \: [/tex]
Step-by-step explanation:
It is given that, The circumference of a circle is 34.48 inches and we are to find the radius of the circle.[tex] \: [/tex]
To find the radius of the circle we must know this formula first :
[tex]\\{ \longrightarrow \qquad{ \underline {\boxed{ \pmb{ \mathfrak{ \: 2 \pi r \: =Circumference_{(circle)}}}}}}} \: \: \bigstar \\ \\[/tex]
Now substituting the values in the formula :
[tex]\\{ \longrightarrow \qquad{ {{ \tt{ \: 2 \times 3.14 \times r \: =34.48}}}}} \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ {{ \tt{ 6.28 \times r \: =34.48}}}}} \\ \\[/tex]
[tex]{ \longrightarrow \qquad{ {{ \tt{ r \: = \frac{34.48}{6.28} }}}}} \\ \\ [/tex]
[tex]{ \longrightarrow \qquad{ \pmb {{ \frak{ r \: = 5.490 }}}}} \\ \\ [/tex]
Therefore,
The radius of the circle is 5.49 inches (Rounded to nearest hundredthWrite a story problem for the equation 25 ÷ 6.
Alice picked 25 apples from the garden and she wants to share the apples with her 6 friends. She wants to determine how many apples each friend would get.
What is division?Division is a mathematical operation taht entails grouping a number into equal parts using another number. The sign used to denote division is ÷.
Based on the sign in the question, you are to divide 25 by 6. In order to do this, group 25 into 6 groups. The result is 4 remainder 1.
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The following data shows the number of stage shows 20 students of a class watched in a month:
1 7 4 4 3 2 7 8 1 19 20 22 20 19 16 16 19 13 1 13
Which histogram represents this data?
A histogram titled Number of Stage Shows Students Watch is shown. The horizontal axis is labeled Number of Stage Shows Watched with bins 0 to 5, 6 to 11, 12 to 17, and 18 to 23. The vertical axis labeled Number of Students with values from 0 to 10 at intervals of 1. The first bin goes to 7, the second goes to 6, the third goes to 4, and the last goes to 3.
A histogram titled Number of Stage Shows Students Watch is shown. The horizontal axis is labeled Number of Stage Shows Watched with bins 0 to 5, 6 to 11, 12 to 17, and 18 to 23. The vertical axis labeled Number of Students with values from 0 to 10 at intervals of 1. The first bin goes to 3, the second goes to 4, the third goes to 6, and the last goes to 7.
A histogram titled Number of Stage Shows Students Watch is shown. The horizontal axis is labeled Number of Stage Shows Watched with bins 0 to 5, 6 to 11, 12 to 17, and 18 to 23. The vertical axis labeled Number of Students with values from 0 to 10 at intervals of 1. The first bin goes to 7, the second goes to 3, the third goes to 4, and the last goes to 6.
A histogram titled Number of Stage Shows Students Watch is shown. The horizontal axis is labeled Number of Stage Shows Watched with bins 0 to 5, 6 to 11, 12 to 17, and 18 to 23. The vertical axis labeled Number of Students with values from 0 to 10 at intervals of 1. The first bin goes to 3, the second goes to 7, the third goes to 6, and the last goes to 4.
The histogram that represents this data would be the histogram shown in the image below.
What is a Histogram?In a histogram, bars or bins show the frequency of a range of data points in a data distribution.
Given the data set, 1, 7, 4, 4, 3, 2, 7, 8, 1, 19, 20, 22, 20, 19, 16, 16, 19, 13, 1, 13, the groups and frequency for the data distribution would be:
0 - 5: 7
6 - 11: 3
12 - 17: 4
18 - 23: 6
Therefore, the histogram that represents this data would be the histogram shown in the image below.
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Answer:
if you are confused about the explanation of the person on top... it means the answer is C.
Step-by-step explanation:
creds to the person on top
A searchlight uses a parabolic mirror to cast a beam of light in parallel rays where the light bulb is located at the focus of the parabola in order to give the best illumination. The mirror is modeled by y2 = 20(x – 10), where the measurements are in cm. What is the location of the light bulb? HELP!!!!
A. (10, 0)
B. (20, 0)
C. (12, 0)
D. (15, 0)
The location of the light bulb is (15, 0). Check the reason for the answer been (15, 0) below.
What is a parabolic mirror?This is also known as paraboloid or paraboloidal reflector. It is a kind of dish or a mirror that is said to have a reflective surface which is often used to take in or project any kind of energy e.g., light, sound, etc.
For the above question, the formula is:
y² = 2px
The focus is (p/2, 0)
x- 10 = u
y2 = 20u
So, the focus for U = ( [tex]\frac{20}{4}[/tex]; 0)
The focus for x = ( [tex]\frac{20}{4}[/tex]; 10, 0)
= 5 , 10, 0
= (15, 0)
Therefore, the answer is (15, 0)
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Help me out and earn Brainliest!!
Step-by-step explanation:
Well there is no direct formula for calculating the orthocentre
well the process of finding the orthocentre is to find the altitudes of all the sides and then find their intersection points
Here in this question
The given triangle represents a right angled triangle with right angled at L(-3,2)
We know that the ortho centre in a right angled triangle is the right angled vertex
-----------------------------------------------------------------------
Hence the required orthocentre is (-3,2) and it is on the Triangle
-----------------------------------------------------------------------
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS PLEASE AND PLEASE EXPLAIN WHY THAT IS THE ANSWER
Answer:
i cant really see the screen
Step-by-step explanation: