Find the value of k so that the equation will have exactly one rational solution.9x2 + kx + 25 = 0
A. 15 or -15
B. 30 or -30
C. 30i or -30i
D. None
Answer: B
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Factor out the greatest common factor, or a negative common factor if the coefficient of the term of greatest degree is negative.-10s6 + 40s3
A. -s3(10s3 + 40) B. 30(s3 + 4s) C. -10s3(s3 + 4) D. -10s3(s3 - 4)
Factor the trinomial completely.x2 + 8xy - 128y2
A. (x - 16y)(x + 8y) B. (x - 16y)(x + y) C. (x + 16y)(x - 8y) D. Prime
Find the probability.What is the probability that the arrow will land on an odd number?
A. 
B. 0
C. 
D. 1
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The enrollment at a local college decreased by 8% over last year's enrollment of 3400. Find the current enrollment.
A. 3128 students B. 272 students C. 3672 students D. 3392 students