Use a sum-to-product identity to rewrite the expression.sin 5° - sin 23°
A. 2 cos (-9.0°) sin 14.0°
B. 2 sin (-9.0°) sin 14.0°
C. 2 sin (-9.0°) cos 14.0°
D. 2 cos (-9.0°) cos 14.0°
Answer: C
Mathematics
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A worker cuts a 57 feet beam into two pieces. He wants one piece to be 3 feet shorter than three times the length of the other piece. Find the length of shorter piece.
A. 12 B. 15 C. 42 D. 18
Mathematics
Use synthetic division to divide. (2x3 + x2 - 5x + 2) ÷ (x + 5)
A. 2x2 - 9x - 40 + 
B. 2x2 - 9x + 40 + 
C. 2x2 - 9x + 40 + 
D. 2x2 + 11x + 10 + 
Mathematics
Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = 
A. (6, 0) B. (-7, 0), (7, 0) C. (49, 0) D. none
Mathematics
Solve.
+ 
= 
A. 
B. 
C. 
D. 
Mathematics