Factor completely. If the polynomial cannot be factored, write "prime."x2y2 - 14xy + 48
A. (xy + 6)(xy - 8)
B. (xy + 6)(xy + 8)
C. (xy - 6)(xy + 8)
D. (xy - 6)(xy - 8)
Answer: D
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Solve using Cramer's rule.
A. (3, 8) B. (-3, -8) C. (-8, 3) D. (8, 3)
Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.99 - (Years)
A. Y ÷ 99 B. 99 ? Y C. 99 - Y D. 99 + Y
Solve.Some desert areas get only 8-10 inches of rainfall per year (365 days). If in one year the rainfall was 8.36 inches, what was the average daily rainfall for that year? (Round to the nearest thousandth.)
A. 0.023 in. B. 0.230 in. C. 0.229 in. D. 0.024 in.
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 3x B. y = 2.8x C. y = 3x + 0.15 D. y = 2.8x + 0.15