Factor the difference of two squares.9 - w2
A. (3 - w)2
B. (3 - w)(3 + w)
C. (3 + w)2
D. prime
Answer: B
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Which of the first three prime numbers - 2, 3 and 5 - are factors of the following?38,399
A. none B. 3, 5 C. 5 D. 2, 3
Solve the problem.The cost of tuition at a community college is given by C(x) = 490 + 54x, where x is the number of credit hours. Interpret the slope of this function as a rate of change.
A. The tuition at the community college increases by $490 for each additional 54 credit hours. B. The number of credit hours increases by 54 for each increase of $490 in tuition. C. The tuition at the community college increases by $490 for each additional credit hour. D. The tuition at the community college increases by $54 for each additional credit hour.
Solve.The ratio of a basketball player's completed free throws to attempted free throws is 5 to 6. If she completed 20 free throws, find how many free throws she attempted.
A. 17 free throws B. 5 free throws C. 24 free throws D. 4 free throws
Use a graphing calculator and the method of matrix inverses to solve the system. Give 5 decimal places.3.2x + ?y = 
x - 7.84y = 4
A. {(0.25269, 0.45438)} B. {(1.25432, -0.73113)} C. {(0.98584, -0.29241)} D. {(0, 1)}