Which expression is prime?

A) x2 - 9

B) 1 - 9x2

C) 2a2 - 25

D) 4x2 - 9

The graph shows two lines, A and B. A coordinate plane is shown with two lines, A and B, graphed. Line A has a slope of negative 1 and crosses the y axis at 5. Line B has a slope of positive 1 and crosses the y axis at 3.

What are the factors of 76?

Rewrite the function in "vertex from (by completing the square) 1) f (x) = - x^2 + 8x+3

A bakery sold 102 cupcakes in one day. The head baker predicted he would sell 82 cupcakes that day. What was the percent error of the baker's prediction? A. 24.39% B. 19.61% C. 20% D. 80.

Which of these four sets of side lengths will form a right triangle? Set 1 4 cm, 5 cm, 6 cm Set 2 8 in., 12 in., 20 in. Set 3 10 mm, 20 mm, 30 mm Set 4 12 ft, 16 ft, 20 ft Set 1 Set 2 Set 3 Set 4

It took Miguel 7 mins 38 secs to run one mile. It took Jorja 9mins 13 secs to run one mile. How many more seconds did it take to run one mile than Miguel

Each dimension of a parallelogram is multiplied by a positive number n. Write an expression for the area of the new parallelogram. Let b represent the base and h represent the height of the original parallelogram.

4 more than the product of 8 and n

Which is greater 0.6 or 0.06

Clarke borrows $16000 to buy a car he pays simple interest at an annual rate of 6% over a period of 3.5 years how much does he pay all together?