Factor the trinomial completely, or state that the trinomial is prime.7x2 - 20x + 3
A. (7x - 3)(x + 1)
B. (7x - 1)(x + 3)
C. (7x + 1)(x - 3)
D. prime
Answer: D
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Factor the trinomial by grouping.25x + 35x2 + 6x3
A. 6x(x + 5)(x + 5) B. x(x + 5)(6x + 5) C. x(6x + 5)(x + 6) D. prime
Use the four-step procedure to solve the variation problem.A person's hair length varies directly as the number of weeks it has been growing. If Fred shaved his head bald and his hair was 0.28 inches long after 7 weeks, how long would it be after an additional 6 weeks? Round to the nearest hundredth of an inch.
A. 1.50 inches B. 0.24 inch C. 3.25 inches D. 0.52 inch
Find the probability.A lottery game contains 28 balls numbered 1 through 28. What is the probability of choosing a ball numbered 28, P(28)?
A. P(28) = 0
B. P(28) = 1
C. P(28) = 
D. P(28) = 28
Solve the triangle.A = 53°, B = 65°, a = 7
A. C = 62°, b ? 7.9, c ? 6.8 B. C = 28°, b ? 6.2, c ? 6.8 C. C = 62°, b ? 6.2, c ? 6.8 D. C = 62°, b ? 7.9, c ? 7.7