Solve the problem.What is the coefficient of x7y7 in the expansion of (x + y)14?
A. 2,471,040
B. 7
C. 17,297,280
D. 3432
Answer: D
Mathematics
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Express the vector in the form v = v = v1i + v2j + v3k.7u - 2v if u = and v =
A. v = 1i + 7j - 2k B. v = 1i + 9j - 2k C. v = 13i + 7j - 2k D. v = 7i + 7j - 2k
Mathematics
Solve the problem.If the legs of a right triangle have lengths 9 and 4, what is the length of the hypotenuse, that is, the longest side? Round your answer to the nearest tenth.
A. 8.1 B. 3.6 C. 9.8 D. 97.0
Mathematics
Find the center and radius of the circle with the given equation. x2 + 8x + 16 + y2 - 12y + 36 = 4
A. Center (-6, 4), r = 4 B. Center (-4, 6), r = 2 C. Center (4, -6), r = 4 D. Center (6, -4), r = 2
Mathematics
Find the domain of the function.f(x) = x2 + 6
A. {x|x ? -6} B. {x|x > -6} C. {x|x ? -6} D. all real numbers
Mathematics