For all real numbers a and b, if ab=0, then a=0 or b=0. True or false?

Verify the identity sin^2 (x) cos^2 (x) = 1/8 (1-cos (4x))

The personnel department of a large manufacturing firm selected a random sample of 23 workers. The workers were interviewed and given several tests.

Marti rolls two dice. What is the possibility that the sum of the dice is 7, given that the first die is a 2?

Bella wants to find the circumference of a circle. What two values does she need to know? Choose exactly two answers that are correct. A. distance B. area C. diameter D.

2 numbers sum is 7 product is - 18

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built?

What does principle amount mean

If z varies directly as x and z=30 when x=8 find z when x=4

Which measurement statement is correct? A. There are 2 cups in a pint B. There are pints in a cup C. There are 4 quarts in a pint D. There are 4 pints in quart

What is the surface are of a storage b