All categories

3 years ago

12. Find the radius of a circle with a circumference of 457 centimeters.

Mathematics

1 answer:

irga5000 [103]3 years ago

6 0

Step-by-step explanation:

$Circumference=d\pi\\Circumference=2r\pi$

Since we need to find the radius, then we will rearrange the second formula.

$Radius=\frac{C}{2\pi }$

$Radius=\frac{457}{2\pi }$

$Radius=\frac{457}{6.28}$

$Radius= 72.8 (rounded)$

So, the radius of a circle that has a circumference of 457 is about 72.8 cm

You might be interested in

Adam is hired at a salary of $50000 per year but will earn an annual increase of 2.5% per year. Brock is hired at the same time

nadezda [96]

A=50000(1.025^t), B=50000+3000t

A(10)=$64004.23, B(10)=$80000

So Brock will be earning $15995.77 more than Adam in the tenth year.

4 0

3 years ago

Which expression is not equivalent to the other expressions?

Ket [755]

That would be D

the first 3 = -12x + 24

bur D = -12x - 24

4 0

3 years ago

Read 2 more answers

Find the prime factorization of the following 2 numbers 36 and 72?

Kryger [21]

Answer:

36 = 2² x 3²

72=2³×3²

Step-by-step explanation:

5 0

3 years ago

The midpoint of AB is at (3,7) and A is at (0,-5). Where is B located?

olga nikolaevna [1]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ \square }}\quad ,&{{ \square }})\quad 
% (c,d)
&({{ \square }}\quad ,&{{ \square }})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)\qquad thus
\\
----------------------------\\$ $\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
A&({{ 0}}\quad ,&{{ -5}})\quad 
% (c,d)
B&({{ \square }}\quad ,&{{ \square }})
\end{array}\qquad
% coordinates of midpoint 
(3,7)\impliedby midpoint\qquad thus
\\ \quad \\
\left(\cfrac{{{ x_2 }} + {{ 0}}}{2}=3\quad ,\quad \cfrac{{{ y_2 }} + {{( -5)}}}{2}=7 \right)\to 
\begin{cases}
\cfrac{{{ x_2 }} + {{ 0}}}{2}=3
\\ \quad \\
\cfrac{{{ y_2 }} + {{ -5}}}{2}=7
\end{cases}
\\ \quad \\
solve\ for\ x_2\ and\ y_2$

3 0

3 years ago

Peter and his four brothers combined all of their money to buy a video game. If 30% of the total money is Peter's, and $6.00 of

trapecia [35]

B)$20 but also dam these mother truckers are broke.

6 0

2 years ago