Find the product of 21 and (6.3x10^-4)

Multiply. 2 x 6/5 A. 8/5 B. 6/10 C. 12/10 D. 12/5

What is the degree measure of a semicircle

Let G be a group of order 143 = 11 * 13, and, as usual, let Z (G) denote the center of G. Assume that we have found an element x ∈ Z (G) with x = e. What are the possibilities for the |Z (G) |? Prove any assertions you make.

Turn 1.3 repeating into a fraction

Which of the following could be used to estimate the quotient? 3,458 : 17 3,000 : 200 = 15 4,000 : 100 = 40 4,000 : 10 = 400 3,000 : 20 = 150

Whar is the value of x (x+1) + (2x-15)

Expand then simplify 2 (x-5) + 2x

A set of speakers costs $22 and songs cost $1.25 each. The sales tax rate is 7.5%. The expression 0.075 (22 + 1.25s) can be used to determine the amount of sales tax due on the entire purchase.

The lengths of nails produced in a factory are normally distributed with a mean of 5.13 centimeters and a standard deviation of 0.04 centimeters. find the two lengths that separate the top 8% and the bottom 8%.

A village lost 15% of its cows in a flood and 10% of the remainder died of diseases. If the number left now is 7650, what was the original number of cows before the flood