Using a sum or difference identity, write the following as an expression involving functions of x.sin (x + 2?)
A. sin x
B. -cos x
C. 
cos x - 
sin x
D. 
cos x + 
sin x
Answer: A
Mathematics
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Find the logarithm. Give an approximation to four decimal places.log 0.00284
A. -2.5317 B. -2.5622 C. -5.8640 D. -2.5467
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Factor the polynomial completely.x2 - 40x + 400
A. (x + 20)2 B. (x - 20)2 C. (x + 20)(x - 20) D. Prime
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Complete the graph by shading the correct region.y ? x - 6
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A guitar manufacturer spent $93 million on the production of acoustic and electric guitars in 1999. If the amount the company spent producing acoustic guitars was $57 million more than it spent on producing electric guitars, how much in fact did the company spend producing electric guitars?
A. $18 million B. $93 million C. $46.5 million D. $75 million
Mathematics