Solve the problem.Assuming two parents, four grandparents, etc., what is the total number of ancestors a person has going back 8 generations?

A. 254
B. 128
C. 510
D. 256


Answer: C

Mathematics

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Find the gradient field F of the function f.f(x, y, z) = x4e5x + y5z5

A. F = (4 + 5x)x3e5xi + 5y4z5j + 5y5z4k B. F = (4 + 5x)x3e5xi + 5y4j + 5z4k C. F = (1 + x)x3e5xi + y4z5j + y5z4k D. F = (4 + 5x)x3e5xi + (x4e5x + 5y4z5)j + (x4e5x + 5y5z4)k

Mathematics

Subtract the real numbers. Write any improper fraction as a whole or mixed number where appropriate. - 

A. 5
B.
C.
D.

Mathematics

Provide an appropriate response.Decide whether the expression is positive, negative, or zero. 

A. Positive B. Negative C. Zero

Mathematics

Write the whole number in words.Jennilee has 30,000 frequent flier miles.

A. Thirty million B. Thirty thousand C. Three hundred thousand D. Three thousand

Mathematics