Evaluate the expression by hand.-1/2 + -3/2

A. - 
B. 129
C. - 
D. 9


Answer: B

Mathematics

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Simplify.4[-6 + 2(-5 + 2)]

A. -30 B. 44 C. -48 D. 48

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Find (t) for the function given.

r(t) = 4i + sintj + costk

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Provide an appropriate response.In right triangle ABC with right angle C, find the indicated part. Round to four significant digits. Find a if A = 45° and b = 8.5 yd.

Fill in the blank(s) with the appropriate word(s).

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Multiply.0 ? (-13)

A. -13  B. 13  C. -26 D. 0

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