kitty138 kitty138
  • 04-07-2018
  • Mathematics
contestada

What’s the radius of a cone if the height is 12 and the volume is 36pi

Respuesta :

mkryukova19 mkryukova19
  • 04-07-2018
V = (1/3)πr²h
V= 36π
h=12

36π=(1/3)πr²*12
36 =4r²
r² = 9
r = √9 = 3
Answer: r=3. 
Answer Link

Otras preguntas

Is #4 right? Someone plz help.
Can some one please help me on this
What does the guarantee of freedom of assembly and petition intend to protect
1. Simplify: (2n-3)/(6n-9) A) 3 B) 1 C) 1/3 D) 1/3n 2. Multiply: (4x+12)/(x^2-2x) × x/(6x+18) A) 2/(3(x-2)) B) 2/(x-2) C) 2/3 D) 4/x
Polonium-218 has a half-life of about 3 minutes. After 15 minutes, how many milligrams of a 120 mg sample will remain? A. 1.875 mg B. 3.75 mg C. 4.8 mg D. 7.5
Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 5 CDs a month to her colle
An investigation using a fan and a wooden car is shown. Which of the following actions will most likely increase the distance the car will travel? A. increase t
8x-9y=19 4x+y=-7 How Do I Do This Type Of Math
What is tiny holes on the surface of a plant?
Emotion-focused forms of coping are based on changing your _____ when faced with stressful situations.