Use a product-to-sum identity to rewrite the expression.sin 5t cos 2t
A. 0.5(cos 7t - cos 3t)
B. 0.5(sin 7t + sin 3t)
C. 0.5(cos 7t + sin 7t)
D. 0.5(sin 7t - sin 3t)
Answer: B
Mathematics
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Expand.(5x + 3)4
A. 1875x4 + 4500 x3 + 1350x2 + 1620x + 81 B. 625x3 + 1500x2 + 1350x + 540 C. 625x4 + 1500x3 + 1350x2 + 540x + 81 D. (25x2 + 15x + 9)4
Mathematics
Complete. =
A.
B.
C.
D.
Mathematics
Write each whole number in standard form.Seven thousand, six
A. 7,006 B. 7,600 C. 7,060 D. 76,000
Mathematics
Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: What rainfall produces the maximum number of mosquitoes?
A. 16 inches B. 8 inches C. 0 inches D. 256 inches
Mathematics