Express the sum or difference as a product.sin 9x + sin 3x
A. 2 sin 12x
B. 2 sin 6x sin 3x
C. 2 cos 6x sin 3x
D. 2 sin 6x cos 3x
Answer: D
Mathematics
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Solve the equation by factoring.2x2 - 7x = 0
A. 
B. {0}
C. 
D. 
Mathematics
The circle graph below shows us how an average consumer spends money. Use this information to answer the question. 
Suppose your family spent $53,000 on the items in the graph above. How much might we expect was spent on food?
A. $10,600.00 B. $9275.00 C. $5300.00 D. $7950.00
Mathematics
Simplify each side of the equation, if possible. Then solve the equation.-5x - 15 + 6x = -9
A. -6 B. 24 C. 6 D. -24
Mathematics
Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?b + 9? + 1 = 9
A. -1, -17 B. 1, 17 C. -1 D. No solution
Mathematics