Evaluate the algebraic expression for the given values of the variables.5x2 + 3x for x = 4
A. 32
B. 68
C. 52
D. 92
Answer: D
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(a) Write the statement symbolically by using parentheses and (b) indicate whether the statement is a negation, conjunction, disjunction, conditional, or biconditional.Let p: The shop is closed. q: It is the weekend. r: It is 9 P.M.The shop is closed if and only if it is the weekend, or it is 9 P.M.
A. (a) (p ? q) ? r; (b) disjunction B. (a) p ? (q ? r); (b) biconditional C. (a) p ? (q ? r); (b) conditional D. (a) (p ? q) ? r; (b) conjunction
Solve the problem.In a local election, 20,900 people voted. This was a decrease of 15% over the last election. How many people voted in the last election?
A. 24,588 people B. 24,035 people C. 17,765 people D. 18,174 people
Solve the problem.Find the probability of getting 2 tails when 3 fair coins are tossed.
A. 
B. 
C. 
D. 
Solve the problem.The network in the figure shows the traffic flow (in vehicles per hour) over several one-way streets in the downtown area of a certain city during a typical lunch time. Determine the general flow pattern for the network.In other words, find the general solution of the system of equations that describes the flow. In your general solution let x4 be free.
A. x1 = 600 - x4 x2 = 400 - x4 x3 = 300 + x4 x4 is free x5 = 300 B. x1 = 500 + x4 x2 = 400 - x4 x3 = 300 - x4 x4 is free x5 = 200 C. x1 = 600 + x5 x2 = 400 - x5 x3 = 300 - x5 x4 = 300 x5 is free D. x1 = 600 - x4 x2 = 400 + x4 x3 = 300 - x4 x4 is free x5 = 300