Solve the equation.
= 
A. {- 3, - 1}
B. 
C. ?
D. {3, 1}
Answer: A
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Solve the equation.x2 + 10x + 25 = 0
A. -6, -4 B. 0, 5 C. -5 D. 5
Solve the problem.In a recent survey in Canada, 88.8% of men shave with a razor blade, which is 1.5 times the percentage of men in Canada who shave with an electric razor. What is the percentage of men in Canada who shave with an electric razor?
A. 29.6% B. 44.4% C. 59.2% D. 88.8%
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Let u represent src="https://sciemce.com/media/4/ppg__ttt0701190814__f1q109g7.jpg" style="vertical-align: -17.0px;" />
, v represent 
, and w represent 
. Solve first for u, v, and w. Then solve the system of equations.
- 
+ 
= 
+ 
- 
= 
+ 
- 
= 
A. (1, -6, -7)
B. (1, -6, 7)
C. 
D. 