Find the derivative of y with respect to the independent variable.y = 7cos ??
A. 7cos ??
B. -7cos ?? ln 7 sin ??
C. -?7cos ?? ln 7 sin ??
D. ?7cos ?? ln 7
Answer: C
Mathematics
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A. - 
B. - 
C. - 1
D. 1
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Solve the system by graphing.
A. Inconsistent B. (-5, 5) C. (4, 5) D. (-4, 4)
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Solve.The area of a circle is found by the equation A = ?r2. If the area A of a certain circle is 64? square centimeters, find its radius r.
A. 8 cm
B. 8
cm
C. ± 8 cm
D. 8? cm
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Use the product rule, quotient rule, or power rule to expand the logarithmic expression. Wherever possible, evaluate logarithmic expressions.log (100x)
A. 20 + log x B. 2log x C. 2x D. 2 + log x
Mathematics