Use a sum-to-product identity to rewrite the expression.sin 17° + sin 34°
A. 2 cos 25.5° cos (-8.5°)
B. 2 sin 25.5° sin (-8.5°)
C. 2 sin 25.5° cos (-8.5°)
D. 2 cos 25.5° sin (-8.5°)
Answer: C
Mathematics
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Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.(x + 10)(x - 4) = -45
A. 4, -55 B. -1, -5 C. -10, 4 D. -41, -10
Mathematics
Evaluate the expression without using a calculator.ln e2
A. 2
B. 
C. log 2
D. -2
Mathematics
Solve the problem. Round dollars to the nearest cent and rates to the nearest tenth of a percent.Find the selling price of an item which cost a store $61. The store has a 30% markup.
A. $46.92 B. $18.30 C. $203.34 D. $79.30
Mathematics
Perform the indicated operation.
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__________two?
Fill in the blank(s) with the appropriate word(s).
Mathematics