Find the indicated sum. Find the sum of the first 7 terms in the geometric series 3 + 9 + 27 + . . .

A. 9840
B. 1122
C. 3279
D. 1092


Answer: C

Mathematics

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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (7x + 3)x

A. ln (7x + 3) + 
B. (7x + 3)x
C. (7x + 3)x
D. x ln (7x + 3)

Mathematics

Multiply.(p3 + 8q3)(-4p3 + 5q3)

A. p6 - 27p3q3  + 40q6 B. -4p6 - 27p3q3 - 27q6 C. p6 - 27p3q3- 27q6 D. -4p6 - 27p3q3 + 40q6

Mathematics

Provide an appropriate response.Subtract and reduce when necessary:  -  

A.
B.
C.
D.

Mathematics

Simplify the expression. Assume that all variables are positive when they appear.

A.
B.
C.
D.

Mathematics