Find the derivative of the function.y = x4cos x - 14x sin x - 14 cos x

A. -x4 sin x + 4x3 cos x - 14x cos x - 28 sin x
B. -x4 sin x + 4x3 cos x - 14x cos x
C. -4x3 sin x - 14 cos x + 14 sin x
D. x4 sin x - 4x3 cos x + 14x cos x


Answer: B

Mathematics

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Translate the English expression into an algebraic expression. Use x to represent the unknown number.The product of 130 and a number

A. 130x B. 130 ÷ x C. x ÷ 130 D. 130 + x

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Provide an appropriate response.Write 7-2 as an ordinary number.

A. -14
B. 49
C.
D.

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Write a slope-intercept equation for a line with the given characteristics.Passes through (5, -3) and (-9, 0)

A. y = - x -  
B. y = - x - 8
C. y = x - 8
D. y = x - 

Mathematics

Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.20, 14 , 8, 2, . . .

A. an = -6n + 20; a20 = -100 B. an = -6n + 26; a20 = -94 C. an = 6n - 20; a20 = 100 D. an = 6n - 26; a20 = 94

Mathematics