Identify the equation as either an identity or not.2 cos 5x sin x = sin 6x + sin 4x
A. Not an identity
B. Identity
Answer: A
Mathematics
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Approximate the circumference of the circle using 3.14 as an approximation for ?.
A. 12.874 mi B. 52.783 mi C. 6.437 mi D. 25.748 mi
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Convert.600 seconds = minutes
A. 25 B. 10 C. 5 D. 18
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Solve the equation.x2 + 4x - 21 = 0
A. {-7, 3} B. {-7, 1} C. {7, -3} D. {7, 3}
Mathematics
Find the average value over the given interval.y = 3x5 ; [-2, 2]
A. 64 B. 16 C. 8 D. 0
Mathematics