Perform all operations in correct order.76 - (28 - 7)

A. 55
B. 41
C. 21
D. 48

Answer: A

Mathematics

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A.
B.
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Find the derivative of y with respect to x.y = 5x3 sin-1 x

A.  + 15x2 sin-1 x
B.  + 15x2
C.
D.  + 15x2 sin-1 x

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In a school survey, students showed these preferences for instructional materials. Answer the question.How many degrees are in the central angle for the "Lecture" sector?

A. 64.8° B. 18° C. 20° D. 32.4°

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Perform the indicated operation. Simplify if possible. + 

A. x - 3 B. x - 6 C. x + 3 D. x + 6

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