Provide an appropriate response.What is the phase shift of the function y = 4 cos 
?
A. 180°
B. 270° left
C. 135° left
D. 135° right
Answer: D
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Find the absolute maxima and minima of the function on the given domain.
on the trapezoidal region with vertices 
and 
A. Absolute maximum: 16 at 
absolute minimum: 6 at 
B. Absolute maximum: 20 at 
absolute minimum: 0 at 
C. Absolute maximum: 16 at 
absolute minimum: 0 at 
D. Absolute maximum: 12 at 
absolute minimum: 6 at 
Find the solution to the system of equations by the substitution method.
A. (100, 27) B. (-100, -27) C. (-100, 27) D. (100, -27)
Solve.A 21-inch-square TV is on sale at the local electronics store. If 21 inches is the measure of the diagonal of the screen, use the Pythagorean theorem to find the length of the side of the screen to the nearest tenth of an inch.
A. 14.8 in. B. 4.6 in. C. 220.5 in. D. 2.3 in.
Determine whether the expression is a partial sum of an arithmetic or geometric sequence. Then find the sum. : 5 + 25 + 125 + ... + 15625
What will be an ideal response?