Factor completely.-30x3 - 14x2 + 8x
A. -2x(5x + 4)(3x - 1)
B. x(5x + 4)(-6x + 2)
C. -2(5x2 + 4)(3x - 1)
D. x(-10x - 8)(3x - 1)
Answer: A
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Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the mean monthly precipitation.
A. 2.80 in. B. 2.94 in. C. 3.09 in. D. 3.27 in.
A college student earns $312.00 per week working three part-time jobs. Half of his 40-hour work week is spent cooking hamburgers at a fast-food chain, earning $6.00 per hour. In addition, the student earns $7.50 per hour working at a gas station and $11 per hour doing janitorial work. How many hours per week does the student work at each job? ?
A. 20 hours cooking hamburgers, 8 hours pumping gas, 12 hours janitorial B. 20 hours cooking hamburgers, 13 hours pumping gas, 25 hours janitorial C. 20 hours cooking hamburgers, 29 hours pumping gas, 13 hours is janitorial D. 8 hours cooking hamburgers, 20 hours pumping gas, 12 hours janitorial E. 21 hours cooking hamburgers, 12 hours pumping gas, 8 hours janitorial
Find the real solutions of the equation.
+ 7 = 8
Fill in the blank(s) with the appropriate word(s).
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log3
A. log37 - log313
B. 
C. log313 - log37
D. log37 + log313