Factor using the reverse FOIL method.8x2 + 6x - 9
A. (4x - 3)(2x + 3)
B. (8x + 3)(x - 3)
C. (4x + 3)(2x - 3)
D. (8x - 3)(x + 3)
Answer: A
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Solve the problem.A cyclist bikes at a constant speed for 17 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 22 miles. Find his speed.
A. 6 mph B. 4 mph C. 7 mph D. 5 mph
Solve the problem.Suppose the price p of bolts is related to the quantity q that is demanded by: p = 500 - 5q2where q is measured in hundreds of bolts. Suppose the supply function for bolts is given by p = 5q2, where q is the number of bolts (in hundreds) that are supplied at price p. Find the equilibrium supply.
A. About 636 bolts B. About 778 bolts C. About 707 bolts D. About 7 bolts
Write the word phrase as an algebraic expression. Use x to represent the unknown value.The sum of a number and 68
A. 68x B. 68 - x C. 68 D. x + 68
Write an equation to describe the situation.Mike is on vacation in Costa Rica. He has a budget of $910 for accommodation. He will stay as long as his budget allows. The more expensive hotel costs $66 per night and the budget hotel costs $43 per night. He plans to stay 7 more nights in the budget hotel than in the expensive hotel. Find the number of nights n that he will stay at the expensive hotel.
A. 43(n + 7) + 66 = 910n B. 43(n + 7) + 66n = 910 C. 43(n - 7) + 66n = 910 D. 43n + 66(n + 7) = 910