Simplify, if possible.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use the graph to complete the identity.
= ? 
A. cot 3x B. tan 5x C. tan 2x + tan 8x D. -cot 3x
Mathematics
Use the square root property to solve the quadratic equation.(p - 4)2 = - 121
A. -15, 7 B. no real solution C. -117, 125 D. -7, 15
Mathematics
Find the y-intercept for the graph of the quadratic function.f(x) = x2 - 9
A. 81 B. -81 C. -9 D. 9
Mathematics
Solve the problem.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain dry road is 0.88 and a car was traveling on it at a rate of 
how far will the car skid? (Round to the nearest foot.)
A. 136 ft B. 40 ft C. 950 ft D. 120 ft
Mathematics