7. A sphere has a volume of 361 in. Find the
radius of the sphere.

r =  4.417

Step-by-step explanation:

in order to calculate the radius of a sphere

given  that

volume of sphere = 361

π = 3.14

radius = ?

recall that the volume of a sphere = 4/3 πr³

361 = 4 /3 × 3.14 × r³

361 = 12.56r³/3

cross multiply

361 × 3 = 12.56r³

1083 = 12.56r³

divide both sides by 12.56

1083/12.56 = 12.56r³/12.56

86.226 = r³

find the cubic root of both sides

r = ∛86.226

r =  4.417

therefore the radius of the sphere is evaluated to be  4.417

for this case we have the following expression:

to solve, we rewrite the expression as:

we apply double c and we have:

thus, the quotient is 48.

so, patel found a wrong ratio and the multiplication was incorrect.

option d

step-by-step explanation:

10.50 + taxes which added up to 11.50