Solve the problem.A dual-beam search light is positioned to shine on a prison wall. The light is 1 feet from the wall and rotates clockwise. The light shines on point P on the wall when first turned on 
After t seconds the distance (in feet) from the beam on the wall to the point P is given by the function 
When the light beam is to the right of P, the value of d is positive, and when the beam is to the left of P, the value of d is negative. Graph d over the interval 0 ? t ? 5. 
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A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Mathematics
Simplify. Assume that all variables represent positive real numbers.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the relative maxima and relative minima, if any, of the function.
?
?
A. Relative maximum: 
, No relative minima
B. Relative minimum: 
, Relative maximum: 
C. No relative maxima, Relative minimum: 
D. No relative maxima or minima.
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors.log2
A. 
log2
B. 7log2y - 4log2x
C. 4log2x + 7log2y
D. 4log2x - 7log2y
Mathematics