Find the product using the formula for multiplying the sum and difference of two terms. Check the answer using the FOIL method.(8a + 5c)(8a - 5c)

A. 8a2 - 5c2
B. 64a2 - 80ac - 25c2
C. 64a2 - 25c2
D. 64a2 + 80ac - 25c2


Answer: C

Mathematics

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Solve the problem.Find the volume of the region bounded below by the xy-plane, laterally by the cylinder  and above by the plane .

A. 256? B. 64? C. 8? D. 32?

Mathematics

Find the zeros of f(x), given that one zero is k.f(x) = x4 - 12x2 - 64k = -2i

A. ±2i, ±4i B. ±2i, ±8i C. ±2i, ±4 D. ±2i, ±8

Mathematics

Graph the region between the curves and use your calculator to compute the area correct to five decimal places.



a. 12.08127
b. 91.504
c. 3.141257
d. 3.66016
e. 18.3008

Mathematics

Rewrite the logarithm as a ratio of common logarithms. ? log5 16 ?

A.
B.
C.
D.
E. None of these

Mathematics