T7 ( volume of sphere )

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

An object in geometry with no width, length or height is a(n):

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.