Use sum-to-product formulas to rewrite the expression as a product.cos 5x + cos 3x
A. 2 cos 4x sin x
B. 2 cos 4x
C. 2 cos 4x cos x
D. 2 sin 4x sin x
Answer: C
Mathematics
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Subtract.4.965 - (-0.78)
A. 5.845 B. 5.745 C. 4.185 D. 3.873
Mathematics
Find the product.(x - 3)(x2 + 3x + 9)
A. x3 + 6x2 + 6x - 27 B. x3 - 27 C. x3 + 27 D. x3 - 6x2 - 6x - 27
Mathematics
Write in exponential form.5 = log10 100,000
A. 105 = 100,000 B. 100,0005 = 10 C. 510 = 100,000 D. 10100,000 = 5
Mathematics
Solve for the variable.3(x + 8) = 4(x - 3)
A. x = -36 B. x = 36 C. x = -12 D. x = 12
Mathematics