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2 years ago

The radius of a circle is 16 yards. What is the circle's circumference?

Mathematics

1 answer:

ss7ja [257]2 years ago

7 0

Answer:

100.5309649149

Step-by-step explanation:

circumference = 2π(r)

Since you already have the radius of the circle, you would have to multiply the radius by 2 to get the diameter which is the full width of the circle . Then, multiply the result by π, or 3.14 and then round how you are asked to.

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Solve the equation below 5 - 1/2x = 5/8x + 2

Dafna1 [17]

X = 8/3

I hope this helped!

4 0

4 years ago

Read 2 more answers

John takes out a personal loan for $5,000 at an annual interest rate 7.5%, compounded monthly. He plans to pay off the loan (inc

myrzilka [38]

Answer:

155.53

Step-by-step explanation:

I know where this question is from hahaha

6 0

3 years ago

F(x) = 3(3x + 4)<br> The inverse

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

find the inverse of the function y=9x+12

To find the inverse function, swap x and y, and solve the resulting equation for x.

If the initial function is not one-to-one, then there will be more than one inverse.

So, swap the variables: y=9x+12 becomes x=9y+12.

Now, solve the equation x=9y+12 for y.

$f^{-1}$ (x) = (x-12)/9

y=(x−12)/9

4 0

3 years ago

The mean number of students in a classroom at school a is 32.5 and there are 25 classrooms. The mean number of students at schoo

Airida [17]

We have given three school there, School A, School B and School C.

We are going to use following formula.

Total number of student in a school = Mean of number of student × Number of classrooms.

School A

Mean of students in School A = 32.5.

Number of classroom in School A = 25.

Number of students in School A = Mean × number of classrooms = 32.5×25 = 812.5

School B

Mean of students in School B = 29.6.

Number of classroom in School B = 12.

Number of students in School B = Mean × number of classrooms = 29.6×12 = 355.2

School C

Mean of students in School C = 15.3.

Number of classroom in School C = 10.

Number of students in School C = Mean × number of classrooms = 15.3×10 = 153.

Total sum of number of classes in all schools = 25+12+10 = 47.

Total sum of all students in all schools = 812.5 +355.2 +153 = 1320.7 .

The mean number of students per classroom for all the schools combined =

$\frac{Total \ sum \ of \ all \ students \ in \ all \ schools}{Total \ sum \ of \ number \ of \ classes \ in \ all \ schools}$

= $\frac{1320.7}{47}$ = 28.1

The mean number of students per classroom for all the schools combined= 28.1

4 0

3 years ago

Explain the answer please

valentina_108 [34]

The area of a square is the square of the length of its side. Here, we're told that the side of each square is equal to the radius (r) of the circle. Then the area of each square is
.. Asquare = r^2
There are 3 of them, so their total area is
.. Aall_squares = 3*r^2

The area of a circle is given by the formula
.. Acircle = π*r^2 . . . . . where r represents the radius of the circle

Fernie wants to compare the area of the 3 squares to that of the circle. We know that the value of π is about 3.1416, a little more than 3, so we have
.. Aall_squares = 3*r^2
.. Acircle ≈ 3.1416*r^2

We notice that 3.1416 is more than 3, so the area of the circle is greater than the area of Fernie's 3 squares.

___
It is not clear to me that Fernie's drawing will explain the formula A = π*r^2, unless it can somehow be used to show that the parts of each square that are outside the circle add up to an amount that is slightly less than the uncovered part of the circle.

8 0

4 years ago