Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin.
?
Directrix: x =-4
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Solve the problem.Find the value of b for which 1 - eb + e2b - e3b + ... = 
.
A. ln 
B. ln 3
C. ln 4
D. ln 2
Mathematics
Express the product as a sum containing only sines or cosines.2 cos(7?) cos ?
A. cos(14?) + cos(2?) B. cos(10?) + sin(4?) C. cos(8?) + cos(6?) D. cos(8?) + sin(6?)
Mathematics
Find an expression for the general term, an.64, -16, 4, -1, . . .
A. an = 64(-4) n - 1
B. an = 64
n - 1
C. an = 64
n - 1
D. an = 64
n - 1
Mathematics
Use an identity to write the expression as a single trigonometric function or as a single number.cos24x - sin24x
A. 2 sin 4x
B. cos 8x
C. cos 4x
D. 
sin 16x
Mathematics