Use a sum or difference identity to find the exact value.sin 
A. 
B. 
C. 
D. 
Answer: B
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Subtract.90,000 - 14,387
A. 94,387 B. 96,723 C. 84,387 D. 75,613
Solve the problem.Find a polynomial that represents the volume of the cube.
A. 27x3 + 27 B. 27x3 + 243x + 27 C. 54x2 + 108x + 54 D. 27x3 + 81x2 + 81x + 27
Find the amount of each payment to be made into a sinking fund so that enough will be present to accumulate the following amount. Payments are made at the end of each period. The interest rate given is per period.$97,000; money earns 4.6% compounded monthly for 
A. $5215.43 B. $2517.96 C. $345.76 D. $2594.97
Solve the problem.The perimeter of a rectangle is six times the width. If the length were increased by 4 inches and the width were increased by 7 inches, then the perimeter would be 160 inches. What is the width?
A. 23 in. B. 46 in. C. 138 in. D. 69 in.