Decide whether the following is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.x + 7 = 19
A. Equation; -12
B. Equation; 12
C. Expression; 26 - x
D. Expression; -26 + x
Answer: B
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Use the given functions to find the requested function.f(x) = 2x2 - 7x, g(x) =x2 - 5x - 14Find f/g.
A. 
B. 
C. 
D. 
Simplify the algebraic expression.10x + 7(y - 3) + 9
A. 3xy - 12 B. 10x + 7y - 12 C. 17xy - 30 D. 10x + 7y + 30
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
Simplify the expression.
A. 
B. 
C. 
D. 
E. none of these