Determine whether the given lines are parallel, perpendicular, or neither.6x + 2y = 812x + 4y = 18
A. Parallel
B. Perpendicular
C. Neither
Answer: A
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Find the product.(7.1x + 1.2)(0.4x + 4.9)
A. 2.84x2 + 35.27x + 5.88 B. 7.5x2 + 35.27x + 35.27 C. 2.84x2 + 35.27x + 35.27 D. 7.5x2 + 35.27x + 5.88
Use Bayes' rule to find the indicated probability.Among students at one college are 3800 women and 3115 men. The following table provides relative-frequency distributions for subject major for males and females at the college. MajorRelative frequency Relative frequency for women for men Humanities 0.205 0.155Science 0.291 0.313 Social Science 0.149 0.383 Other 0.355 0.149A student is selected at random from the college. Determine the probability that the student selected is female given that he or she is a Humanities major.
A. 0.617 B. 0.113 C. 0.205 D. 0.635
Multiply.(-2y + 7)(8y2 - y + 1)
A. 10y2 - 9y + 7 B. -16y3 - 9y + 7 C. -16y3 + 54y2 - 9y + 7 D. -16y3 + 58y2 - 9y + 7
Solve the problem by using two equations with two variables.A twin-engined aircraft can fly 1216 miles from city A to city B in 4 hours with the wind and make the return trip in 8 hours against the wind. What is the speed of the wind?
A. 57 mph B. 114 mph C. 76 mph D. 95 mph