Use sum-to-product formulas to rewrite the expression as a product.sin 10x + sin 4x
A. 2 sin 7x cos 3x
B. 2 sin 7x sin 3x
C. 2 cos 7x sin 3x
D. 2 sin 14x
Answer: A
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Convert the degree measure to radians. Give your answer to 4 decimal places.118.8°
A. 0.4823 B. 2.0735 C. 4.1469 D. 373.2212
Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $380 Amount of tax: $34.20
A. 0.9%, $414.20 B. 11%, $414.20 C. 10%, $414.20 D. 9%, $414.20
Two triangles below are similar. Find missing length(s).
Give your answers as mixed numbers if appropriate.
A. x = 22
; y = 31
B. x = 12; y = 16
C. x = 10; y = 14
D. x = 7; y = 13
Solve.An object is at rest at t = 0 seconds and then begins accelerating at a constant 8 feet per second per second. The distance the object travels in the first t seconds is given by the polynomial 4t2. Find the distance the object travels in the first 3 seconds.
A. 24 feet B. 36 feet C. 12 feet D. 9 feet