Factor completely.169k2 - 36m2
A. (13k - 6m)2
B. (13k + 6m)(13k - 6m)
C. (13k + 6m)2
D. Prime
Answer: B
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Solve the problem.If a given set has thirteen elements, how many of its subsets have somewhere from four through eight elements?
A. 4,719 subsets B. 1,419 subsets C. 5,434 subsets D. 6,721 subsets
Solve the problem.In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 250 kWh. For a randomly selected home, find the probability that the September energy consumption level is between 1100 kWh and 1225 kWh.
A. 0.0910 B. 0.2881 C. 0.3791 D. 0.1122
Factor.x2 + x - 20
A. (x - 4)(x + 5) B. (x - 5)(x + 4) C. prime D. (x + 1)(x - 20)
Provide the proper response.Without graphing, justify why x2 + 4 - 4x - 12y + 48 = 0 is the equation of a parabola.
What will be an ideal response?