What's the radius of a circle with an area of 16π ft2

r= 4 ft

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

We know the area is

16 pi = pi r^2

Divide each side by pi

16 pi/pi = pi r^2/pi

16 = r^2

Take the square root of each side

sqrt(16) = sqrt(r^2)

4 =r

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet