Perform the indicated multiplication.2(-1)(5)(-7)
A. -70
B. 4
C. 37
D. 70
Answer: D
Mathematics
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A. 64sec2? + 144 csc ? + 81 B. 64sec2? + 144 sec ? + 81 C. 64sec2? + 81 D. 8sec2? + 144 sec ? + 81
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
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Answer the question.What is a quadrilateral with diagonals that bisect each other?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the quotient.
÷ 2
A. 3
B. 2
C. 
D. 
Mathematics