Decide whether the expression is or is not an identity. 2 = 1 - sin x

A. Identity
B. Not an identity


Answer: A

Mathematics

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Perform the indicated operation.

A.
B. 4
C. - 
D. (5t - 6)2

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Classify the triangle as equilateral, isosceles, or scalene. Then classify it as right, obtuse, or acute.

A. Equilateral; obtuse B. Scalene; right C. Scalene; obtuse D. Equilateral; right

Mathematics

Use the sum and difference identities to evaluate exactly.sin 

A. - 
B.
C.
D. - 

Mathematics

Use the accompanying graph of a particle moving on a coordinate line with velocity v = f(t) in ft/sec at time t seconds. The axes are marked off at one-unit intervals. Use these terms to describe the motion state: moving forward/backward, increasing/decreasing speed, and resting. Recall that speed = Give the interval(s) when the particle is moving forward.

A. (0, 8) and (21, 25) B. (11, 19) C. (8, 11) and (19, 21) D. (0, 11) and (19, 25)

Mathematics