Determine if the equations in the given pair are equivalent. Each equation has only one solution.8(a - 4) = 10a - 32 and a = 0
A. Equivalent
B. Not equivalent
Answer: A
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Solve the problem.On a Touch Tone phone, each button produces a unique sound. The sound produced is the sum of two tones and is given by 
and y = sin (2?ht), where l and h are the low and high frequencies (in hertz = Hz) associated with that button. 
The tone produced is thus given by y = sin (2?lt) + sin (2?ht). Write an expression that models the tone by pressing the "9" button as a product of sines and cosines.
A. y = 2 sin (357?t) cos (2061?t) B. y = 2 sin (2329?t) cos (625?t) C. y = 2 sin (2061?t) cos (357?t) D. y = 2 sin (625?t) cos (2329?t)
Solve the problem.A truck driver started for his destination at an average speed of 80 miles per hour. Once snow began to fall, he had to drop his speed to 30 miles per hour. It took the driver 10 hours to reach his destination, which was 500 miles away. How many hours after the driver started did the snow begin to fall?
A. after 6.2 hr B. after 3.8 hr C. after 4.0 hr D. after 6.0 hr
Solve the problem.Approximate the area under the graph of f(x) = 3x2 - 2 from 1 to 5 by partitioning the interval into 4 subintervals of equal length and choosing t to be the left endpoint.
A. 154 B. 82 C. 148 D. 118
Identify u and dv for finding the integral using integration by parts.
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C. 
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D. 
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E. 
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