Solve the problem.The linear function f computes the distance y in miles between a car and the city of Vancouver after x hours, where 
The graphs of f and the horizontal lines 
and 
are shown in the figure. (i) When is the car 90 to 180 miles from Vancouver? (ii) when is the car's distance from Vancouver less than 180 miles. 
A. between 3 and 8 hours after departure; after it has traveled 1 hour
B. before it has traveled 7 hours; between 7 and 8 hours after departure
C. after it has traveled 1 hour; before it has traveled 7 hours
D. between 1 and 7 hours after departure; before it has traveled 7 hours
Answer: D
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In order to determine how American undergraduate college students feel about eliminating spring break in order to finish spring term a week early, a survey was conducted. Two hundred undergraduate students from the University of Miami (FL) were interviewed. Both of the interviewers hired to conduct the survey were told to interview 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors. Of the 200 students interviewed, 20% were in favor of the elimination of spring break, 70% were opposed, and 10% had no opinion.The sampling frame for this survey
A. does not overlap the target population. B. is the same as the target population. C. is larger than the target population. D. is smaller than the target population. E. none of these
Solve the problem.Find the average rate of change illustrated in the graph.
Time (in hours)
A. 0.2 miles per hour B. 2.5 miles per hour C. 25 miles per hour D. 5 miles per hour
Solve the problem.Your starting salary for a new job is $30,000 per year. You are offered two options for salary increases: Option 1: an annual increase of $1000 per year or Option2: an annual percentage increase of 3% of your salary.If you plan on staying at your job for ten years which option would you choose? How much would your salary be after ten years to the nearest dollar?
A. Option 2: $321,456 B. Option 2: $40,317 C. Option 1: $300,000 D. Option 1: $40,000
Graph the parabola with the given equation.(x - 1)2 = -7(y + 2) 
A. 
B. 
C. 
D. 