Use a product-to-sum identity to rewrite the expression.sin 
cos 
A. 0.5
B. 0.5
C. 0.5
D. 0.5
Answer: B
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Foci at (-5, 0), (5, 0); asymptotes: y = 
x, y = - 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Find the limit, if it exists.
A. 4 B. Does not exist C. 0 D. 2
Solve the problem.A rectangular piece of cardboard measuring 15 inches by 29 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 11.52 in. B. 3.15 in. C. 13.79 in. D. 23.04 in.
Solve the problem.
Robert Young earns a weekly salary of $603.16 with no adjustments to income. He is married and claims 4 withholding allowances. Find the federal tax withholding to be deducted from his weekly paycheck using the percentage method tables.
A. $43.92 B. $29.16 C. $60.32 D. $12.76