Three cylinders have a volume of 2826cm squared. cylinders a has a height of 900cm cylinders b has a height of 225 cm cylinders c has height of 100cm find the radius of each cylinders use 3.14 as an approximate for ?

Part a) The radius of cylinder a is

Part b) The radius of cylinder b is

Part c) The radius of cylinder c is

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

solve for r

case a)

we have

substitute the values

case b)

we have

substitute the values

case c)

we have

substitute the values

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

step-by-step explanation: