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