Factor out the greatest common factor, or a negative common factor if the coefficient of the term of greatest degree is negative.-5x2 + 15x
A. -5x(x - 3)
B. -5x(x + 15)
C. -5x2(x + 3)
D. x(5x + 15)
Answer: A
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Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with x-intercepts ±6; foci at (-3, 0) and (3, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.A water tank is formed by revolving the curve y = 3x4 about the y-axis. Find the volume of water in the tank as a function of the water depth, y.
A. V(y) = 
y1/2
B. V(y) = 
y3/2
C. V(y) = 
y3/2
D. V(y) = 
y9
Use the table to find the instantaneous velocity of y at the specified value of x.x = 1.
A. 2 B. 4 C. 6 D. 8
Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = x + 
-1 ? x <1
A. f(x) = 
+ 
B. f(x) = 
+ 2
C. f(x) = 
- 
D. f(x) = 
- 2