The exact value of cos 5pi/12 is:

A) 0.99

B) 0.26

C) sqrt2 (sqrt3-1) / 4

D) sqrt2 (sqrt3+1) / 4

Evaluate the expression below when x = - 1. 2x2 - 5 X + 9

Mr. McMercy is building a multipurpose building for a church in his area. The building will be 44 feet by 74 feet.

Amber determined that the expression - 1/2 divided by - 41/15 is equivalent to 15/82. Which statement describes the process Amber could have used?

What is 89 tens x 63 tens

Convert - 1/8 into a decimal

William earns $15 each time (t) he mows a lawn. Which equation can be used to determine how many lawns William mowed if he earned $75?

Solve for x: 9^ (x-8) = 3^ (4x-12)

Trey is estimating the length of a room in his house. The actual length of the room is 17 m. Trey's estimate is 15 m. Find the absolute error and the percent error of Trey's estimate. If necessary, round your answers to the nearest tenth.

Which ordered pair is a solution of the equation y = 4x? (1, 3) (-1, - 4) (-4, - 1) (1, - 4)

A bowl contains 3 red, 8 blue, and 7 black beads. Margaret randomly selects 3 beads one after the other without replacement. Find the probability of getting a red, blue, and black bead, in that order.