Simplify the expression.
A. 
B. 81
C. not a real number
D. 3
Answer: D
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Find f-1(x).f(x) = 
A. f-1(x) = 
B. No inverse function exists.
C. f-1(x) = 
D. f-1(x) = 8x
Find the slope and the y-intercept of the line.-5y = 2x
A. slope: 0; y-intercept: 
B. slope: 0; y-intercept: 
C. slope: - 
; y-intercept: (0, 0)
D. slope: - 
; y-intercept: (0, 0)
Use Pascal's triangle to expand the binomial.(x - 7y)5
A. x5 - 35x4y + 490x3y2 - 3430x2y3 + 12,005xy4 - 16,807 B. x5 - 35x4y + 980x3y2 - 6860x2y3 + 12,005xy4 - 16,807y5 C. x5 - 35x4y + 980x3y2 - 6860x2y3 + 12,005xy4 - 7y5 D. x5 - 35x4y + 490x3y2 - 3430x2y3 + 12,005xy4 - 16,807y5
Solve the problem.You drive 91 miles along a scenic highway and then take a 22-mile bike ride. Your driving rate is 3 times your cycling rate. Suppose you have no more than a total of 5 hours for driving and cycling. Let x represent your cycling rate in miles per hour. Write a rational inequality that can be used to determine the possible values of x. Do not simplify and do not solve the inequality.
A. 
+ 
? 5
B. 
+ 
? 5
C. 
+ 
? 5
D. 
+ 
? 5