Solve.
= 
A. 4
B. 
C. 
D. 17
Answer: D
Mathematics
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Prove that the equation is an identity.
= sin ? tan ?
What will be an ideal response?
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Find the product.(-12x7)(10x7 - 7)
A. -120x14 - 7 B. -36x7 C. -120x14 + 84x7 D. -120x7 + 84
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Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-29 ÷ 
A. 6
B. 4
C. 3
D. 5
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?Determine the open intervals on which the graph of 
is concave downward or concave upward.
A. ?concave upward on 
; concave downward on 
B. ?concave downward on 
C. ?concave upward on
D. ?concave downward on ; ?concave upward
E. ??concave upward on 
; concave downward on 
Mathematics