Determine what percent of the figure is shaded.

A. 150%
B. 66%
C. 40%
D. 20%

Answer: C

Mathematics

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Evaluate the surface integral of G over the surface S.S is the plane x + y + z = 4 above the rectangle 0 ? x? 1 and 0 ? y ? 5; G(x,y,z) = 8z

A. 120
B. 200
C. 40
D. -120

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Use a sum-to-product identity to rewrite the expression.cos  - cos 

A. 2
B. - 2
C. 2
D. -2

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Mathematics

Decide whether or not the given equation is an identity.sin2   = 1

A. Yes B. No

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If a = 2 and b = 5, find:

a. (ab)2 b. a2b c. ab2

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Mathematics