A rectangular wall 8 yards by 3 yards is to be insulated. How much area needs to be covered?

(a) 20yd2
(b) 22yd2
(c) 11 yd2
(d) 24yd2

(d) 24yd2

Mathematics

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Use reduction formulas to evaluate the integral.

A. -  cos4 5x sin 5x -  cos2 5x sin 5x -  cos 5x + C
B. -  sin4 5x cos 5x -  sin2 5x cos 5x -  sin 10x +  + C
C. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C
D. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C

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Mathematics

Determine whether the equation defines y as a function of x. y2 = 8 - x2

A. function B. not a function

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Mathematics

Provide an appropriate response.Suppose ?PQR ? ?ABC, where ?ABC is shown below. Find PQ.

A. 5 B. Cannot be determined C. 3 D. 4

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Mathematics

Graph the linear function.f(x) = x + 4

A.

B.

C.

D.

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Mathematics