Simplify the expression.
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A. - 
B. - 
C. - 
D. - 
Answer: D
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Provide an appropriate response. A basic relationship between the sine value of an angle and the cosine value of the same angle is given as (sin A)2 + (cos A)2 = 1. Determine cos A if sin A = 0.3907.
A. 0.6093 B. 0.9205 C. 0.7806 D. 0.8474
Sketch a graph to represent the situation described.Janice jogged twice around a circular race track, which took her 4 minutes, then jogged to the center of the track and rested for 4 minutes before walking home slowly at a constant rate, which took her 12 minutes. Sketch a graph of her distance from the center of the race track as a function of time. Assume that the route she takes home is a straight line from the center of the race track.
A. 
B. 
C. 
D. 
Evaluate the first partial derivatives of the function at the given point.
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A. 
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B. ?
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C. ?
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D. ?
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Find the quotient and the remainder.8x3 + 30x2 + 9x - 13 divided by 4x + 5
A. 2x2 + 5x - 4; remainder 10 B. 2x2 + 5x - 4; remainder 7 C. x2 - 4; remainder 5 D. 2x2 + 5x - 4; remainder 0