Find the indicated value.Let f(x) = 2x. f-1
A. -2
B. - 
C. -4
D. 4
Answer: C
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Solve the problem. First use front end rounding. Then find the exact answer.Find the total amount Lisa stashed in an envelope on her dresser if she placed $485 there at the end of each week, for 3 weeks.
A. Estimate: $1500; exact: $1470 B. Estimate: $1470; exact: $1455 C. Estimate: $1470; exact: $1470 D. Estimate: $1500; exact: $1455
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Which is the measure of?BOC, suppose ?a=54°?
 figure 1.png)
Simplify, then write in descending order.
x - 4x2 - 
x3 - 
x + 
x3
A. - 
x3 - 4x2 + 
x
B. 
x3 - 4x2 + 
x
C. - 
x3 - 4x2 - 
x
D. 
x3 - 4x2 - 
x