Which of the following is not an identity?

A. cos^2 x cscx-cscx = - sinx

B. csc^2x + sec^2x = 1

C. sinx (cotx + tanx) = secx

D. cos^2x - sin^2x = 1 - 2sin^2x

Harold has 4 classes each school morning. Each class is 1hr long, and there are 10 min between classes. The first class starts at 8:00 am. What time does the fourth class end

What are the greatest common divisors of these pairs of integers? a. 22 · 33 · 55, 25 · 33 · 52?

What is 0.9219 and 0.9250 round to the nearest hundreadth

What numbers are 4132 divisible by?

What is $450 plus 13% tax

Lola rode her bike for 7/10 of an hour on Saturday and 3/5 of an hour on Sunday. How much longer did she ride her bike on Saturday than Sunday?

Write a compound inequality that represents the situation. On a road in the city of Rochester, the maximum speed is 50 miles per hour, and the minimum speed is 20 miles per hour. A. 20 ≥ x ≥ 50 B. 20 < x < 50 C. 20 > x > 50 D. 20 ≤ x ≤ 50

The graph for the equation y=-x+2 is shown. If another equation is graphed so that the system has an infinite number of solutions, which equation could that be? A. y=-2 (x-1) B. y = - (x+2) C. y=-1/4 (4x-8) D. y=-1/2 (x+4)

Adenan makes a scale drawing of a rectangular flower box. The length is 5 in., and the width is 3 in. Adenan changes the scale of the drawing from 1 in. : 4 ft to 1 in. : 6 ft.

What is The quotient of R and 12