What is the value of b^2 - 4ac for the following equation?

2x^2 - 2x - 1 = 0

a. - 4

b. 0

c. 12

m∠RSU = (5x+7) ° and m∠UST = (9x-1) °. If ∠RSU and ∠UST are complementary, what is the measure of each angle?

What is the common ratio for the geography sequence? - 15,-9,-27/5,-81/25

Members of a high school club sold hamburgers at a baseball game to raise money they sold 278 hamburgers if the buns come in packages of 16 how many packages of buns did the club members open

The track team gives awards for first, second, and third place runners. There are 10 students from school A and 12 students from school B competing.

A pond is created by digging a rectangular prism. The hole is 3 yards wide, 4 yards long, and 2 yards deep. The sides and bottom of the pond are lined with a protective plastic. How many square yards of the plastic are used?

What is the sum of 1/3 and 2/9?

Find three consecutive multiples of 4 so that the product of the first and second number is 16 more than 5 times the third number

What is the value of t in the equation 3 (2t+5) = 5t+25?

Which statement is always true about the measures of corresponding angles? A. Corresponding angles are complementary. B. Corresponding angles have equal measure. C. Corresponding angles are supplementary. D.

At midnight, the temperature was 34°F. By 6:00 a. m. it had dropped 8°, and by noon it had increased by 11°. What was the temperature at noon?