Use the discriminant of the equation to determine the number of x-intercepts.f(x) = x2 + 2x + 3

A. No x-intercepts
B. One x-intercept
C. Two x-intercepts

Answer: A

Mathematics

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Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.v'(t) = 

A. v = 4 tanh-1 + C
B. v =  tanh-1 + C
C. v = -tanh-1 + C
D. v = -  tanh-1 + C

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Mathematics

Rewrite as a base to a power, if possible.

A. x12
B. x13
C.
D.

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Mathematics

Find the slope of the polar curve at the indicated point.r = 2 + 7 cos ?, ? = 

A.
B.
C. - 
D. - 

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Mathematics

Solve the polynomial inequality.(x + 2)(x - 2)2 > 0

A. (-2, -2) ? (-2, ?) B. (-2, 2) ? (2, ?) C. (-2, ?) D. (-?, ?)

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Mathematics