Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.A car's speedometer shows that the car is going 100 km/hr. What is this in miles per hour?
A. 161.0 mi/hr
B. 62.0 mi/hr
C. 106.0 mi/hr
D. 94.6 mi/hr
Answer: B
Mathematics
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Solve the polynomial equation by factoring.2x3 + 4x2 - 2x - 4 = 0
A. -1, 1, -2 B. -1, -2 C. 1, -2 D. 1, -1, 2
Mathematics
Determine which functions are one-to-one.
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(a) I only
(b) I, II
(c) I, II, III
(d) II only
(e) III only
Mathematics
Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Use the equation of the least squares line to predict the score on the test of a student who studies 14 hours. 
A. 82.3 B. 77.3 C. 87.3 D. 88.3
Mathematics
Find the square.(n + 9)2
A. n + 81 B. n2 + 81 C. 81n2 + 18n + 81 D. n2 + 18n + 81
Mathematics