Solve the equation.log4 (x - 1) + log4 (x - 7) = 2
A. x = 9, x = -1
B. x = 9
C. x = -1
D. no solution
Answer: B
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A. 4.5 in. B. 2 in. C. 3 in. D. 4 in.
Solve the problem.Snell's Law states that
= 
,where v1, v2are the speeds at which light travels through two different mediums, and ?1, ?2 are the angles of incidence and refraction respectively. Find the angle of refraction if 
and the angle of incidence is 26°. Give your answer in degrees to the nearest hundredth.
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The graph of a function f is given. Use the graph to answer the question.For which of the following values of x does f(x) = -80?
A. 40 B. 60 C. 0 D. -80
Use a graphing calculator to find the graph of the equation.y = (x - 2)3 + 4
A. 
B. 
C. 
D. 