Find the indicated term or coefficient of the binomial expansion.Find the 4th term of the expansion of (x + 3y)14.

A. 9828x11y3
B. 3276x3y11
C. 9828x3y11
D. 3276x11y4

Answer: A

Mathematics

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Find the quadratic approximation of f at x = 0.f(x) = tan 7x

A. Q(x) = 1 + 7x2
B. Q(x) = 7x
C. Q(x) = 1 + x2
D. Q(x) = 1 - x2

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Graph the ellipse. +   = 1

A.



B.


C.



D.



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Mathematics

Find the slope of the line and sketch its graph.2x + 5y = 14 

A. slope = - 

B. slope = 

C. slope = - 

D. slope = 

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Mathematics

Solve the problem.How long will it take for the population of a certain country to triple if its annual growth rate is 1.6%? Use the exponential growth model   Round to the nearest year.

A. 69 yr B. 1 yr C. 188 yr D. 30 yr

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Mathematics