3 years ago

50 POINTS AND BRAINLIEST!!! QUICK

2 answers:

7 0

A)

R = outside radius
r = inside radius

equation: ( pi*R^2) - (pi*r^2)

B)
3.14 x 11^2 - 3.14 x 9^2

379.94 - 254.34 = 125.6 square meters

7 0

A = pi r^2 pi 9^2 81pi 81 * 3.14 = 254.34 pi 11^2 = 121pi 121 * 3.14 =379.94
379.94 - 254.34 = 125.60 area of sidewalk

Hope it helps

You might be interested in

Darina [25.2K]

Answer:

D.3? you never showed us the picture

Step-by-step explanation:

8 0

3 years ago

Vesnalui [34]

This is my work. Also 2/3 is a repeating decimal so it’s actually 0.6...

4 0

3 years ago

sasho [114]

Answer:

x=8

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

6 0

3 years ago

Sav [38]

A. It passes the vertical line test

4 0

3 years ago

fgiga [73]

When y=0.8

4x +8(0.8) =40

-> 4x +6.4 =40

-> 4x = 33.4

-> x=33.4/4

-> x=8.35

Hope it helps...

Regards;

Leukonov/Olegion.

8 0

3 years ago