Answer:
A = 64 pi
Step-by-step explanation:
The circumference can be found by
C = 2 * pi *r
16 pi = 2 * pi *r
Divide each side by 2 pi
16 pi/ 2 pi = 2 * pi *r/ 2 pi
8 =r
The radius is 8
To find the area
A = pi r^2
A - pi (8)^2
A = 64 pi
It's a 4th degree polynomial since the largest degree (exponent) is 4
Remember
a/b time b/a=1
and
a/b times b=a
and when working with inequalities (> < <u>> <</u>)
flip the sign when dividding or multiplying by a negative number
so < becomes >, <u>></u> becomes <u><</u>
(3/5)e<u>></u>9
multiply both sides by 5/3
e<u>></u>45/3
e<u>></u>15
x/-6<u>></u>5
multiply both sides by -6 don't forget to flip sign
x<u><</u>-30
