Measure the lines using the ruler.
?
?
A. 2 cm
B. 1 cm
C. 2 mm
D. 20 mm
Answer: B
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Solve the problem.At Loop College, the mean grade point average (gpa) of the current student body is 
with a standard deviation of 0.64. Find the gpa of a student whose z-score is 0.6. Round to the nearest hundredth.
A. 3.40 B. 3.14 C. 2.85 D. 2.16
Solve the problem.A driver wants to gauge the fuel efficiency of her vehicle at speeds of 30 mph and above. She notices that traveling at an average speed of 30 mph results in a rating of 36 mpg, where as at an average speed of 40 mph, her car rates 31 mpg. Find an equation to model the gas mileage y for an average speed of x mph.
A. y = 2x + 51
B. y = - 
x + 51
C. y = - 
x - 21
D. y = 2x - 21
Use the method of natural frequencies to find the indicated probability.Some employers use lie detector tests to screen job applicants. Lie detector tests are not completely reliable. Suppose that in a lie detector test, 67% of lies are identified as lies and that 13% of true statements are also identified as lies.A company gives its job applicants a polygraph test, asking "Did you tell the truth on your job application?". Suppose that 89% of the job applicants tell the truth during the polygraph test. What is the probability that a person who fails the test was actually telling the truth?
A. 0.13 B. 0.611 C. 0.389 D. 0.637
Solve the exponential equation. e-t = 0.05
A. 2.796 B. 3.096 C. 2.996 D. -2.996