Can someone help me with this please? I would also like to know how you solved it so I can understand. Thank you. The question is in the picture below

9514 1404 393

  30 units

Step-by-step explanation:

Make use of the formula for the volume of a sphere. Solve for the radius. (You can solve for the radius before or after you put the numbers in the formula.)

  V = (4/3)πr³

  36000π = 4/3πr³ . . . . put the numbers in the formula

  27000 = r³ . . . . . . . . . multiply both sides by 3/(4π)

  30 = r . . . . . . . . . . . . . .take the cube root

The radius of the sphere is 30 units.

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15