AshrafMadeha17 AshrafMadeha17
  • 15-11-2020
  • Mathematics
contestada

18. need help with this cone question

18 need help with this cone question class=

Respuesta :

jerry160000 jerry160000
  • 15-11-2020

answer

given

v=2100cm³

h=3r

v=1/3πr²h

soln

v=1/3πr²h

2100cm³=1/3×π×r²×3r( you will insert 3r in the place of h.)

2100cm³=3π/3×r³(cancel 3 by 3)

2100cm³= πr³

r³=2100cm³/3.14 ( π=3.14)

¾r³=¾2100cm³/3.14(I make them cube root.sorry I can't use the real cube root so I replace it by ¾)

r=8.74…

Answer Link

Otras preguntas

Pls help meeeee with that
DUE IN 4 MINS help plsssssssssssss
Describe the structure of the lungs (number of lobes, types of tissue that make them up, name of membrane surrounding them).
Kristin Company sells 300 units of its products for $20 each to Logan Inc. for cash. Kristin allows Logan to return any unused product within 30 days and receiv
How did Victor change over the course of the book? Choose two pieces of evidence from the graphic novel (one quote from early in the book and one quote from Vol
Merritt is driving to Mount Shasta. On her map, she is a distance of 712 inches away. The scale of the map is 12 inch = 50 miles. How far must Merritt travel to
What does Newton’s second law predict about the acceleration if the net force acting on an object increases?
Solve the equation 3x+1+10x=x+4
Write an equation in slope intercept form that passes through the points (-4,6) and (-5,-2). y = 4x + 24 y = 4x – 38 y = 8x + 38 y = -8x + 38
Please help will give brainliest