Use sum-to-product formulas to rewrite the expression as a product.sin 55° - sin 37°
A. 2 cos 46° cos 9°
B. 2 cos 46° sin 9°
C. 2 sin 46° cos 9°
D. -2 sin 46° sin 9°
Answer: B
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__10612191744__f1q50g7.jpg" alt="" style="vertical-align: -4.0px;" />
Rwhere R is the parallelogram bounded by the lines 
A. 
B. 
C. 990
D. 1980
Solve the problem.The letter Z has a symmetry type
A. D2. B. Z1. C. Z2. D. D1. E. none of these
Provide an appropriate response.Solve the compound inequality: 3x + 1 ? 13 or x - 2 ? 5
A. x ? 4 or x ? 7 B. 4 ? x ? 7 C. x ? 4 or x ? 7 D. no solution
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y is inversely proportional to x. When x = 
, then y = 10.
A. k = 5; y = 
B. k = 5; y = 
C. k = 
; y = 
x
D. k = 
; y = 