imdecentatthings
imdecentatthings imdecentatthings
  • 22-02-2021
  • Mathematics
contestada

help me answer question 8a and b, and I’ll give u 10 points lol

help me answer question 8a and b and Ill give u 10 points lol class=

Respuesta :

Mibo
Mibo Mibo
  • 22-02-2021

Answer:

Step-by-step explanation:

Find h when v = 20 and r = 3

Putting values in the formula

20 = (3.14)(3)2h

20 = (3.14)(9)h

20 = 28.26h

20/28.26 = h

R when v = 100 and h = 5

100 = (3.14)r2(5)

100/5 = 3.14r2

20 = 3.14r2

20/3.14 = r2

6.36 = r2

Square root on both sides

2.52 = r

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