Find an equation of a parabola satisfying the given conditions.Focus at (-5, -3), directrix y = 9

A. (y + 5)2 = -24(x - 3)
B. (y + 5)2 = -24(x + 3)
C. (x + 5)2 = -24(y - 3)
D. (x + 5)2 = -24(y + 3)


Answer: C

Mathematics

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Evaluate the integral.

A. tan34t - tan 4t + t + C
B. tan34t - tan24t +  tan 4t + t + C
C. - tan34t + tan 4t + C
D. tan34t - tan 4t + t + C

Mathematics

The position vector of a particle is r(t). Find the requested vector.The acceleration at t =  for r(t) = (10 sin 5t)i  - (7 cos 5t)j + (10 csc 5t)k

A. a = 175j + 250k
B. a = -250i - 250k
C. a = -250i + 250k
D. a = 250i + 250k

Mathematics

Solve the proportion. = 

A. {15}
B.
C.
D. {6}

Mathematics

Subtract.7.671 - 6.899

A. 14.570 B. 0.872 C. 13.570 D. 0.772

Mathematics