Establish the identity.sin 
= cos x
What will be an ideal response?
sin 
= sin x cos 
+ sin 
cos x = (sin x)(0) + (1)(cos x) = cos x.
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Decide whether the statement makes sense. Explain your reasoning.Paul has about $1800 available for all his personal expenses combined. He figures that he can easily afford to pay 
in rent.
What will be an ideal response?
Solve the problem.Suppose a government decided to pay off its $8 trillion debt with a one-time charge distributed equally among all workers. Assuming the country's total work force is 148 million people, how much would each worker be charged?
A. About $1,850,000 per worker. B. About $54,000 per worker. C. About $5000 per worker. D. About $18,500,000 per worker.
Write the first five terms of the geometric sequence with the given first term a and common ratio r.a = -8; r = -4
A. -4, 32, -128, 512, -2048 B. -8, -12, -16, -20, -24 C. -8, -32, -128, 512, -2048 D. -8, 32, -128, 512, -2048
Researchers conduct an experiment in which one group is exposed to Treatment A and the other group is exposed to Treatment B. What are the treatments?
A. independent variable B. dependent variable C. control group D. treatment group