Factor and simplify the algebraic expression.x7/8 - x1/8
A. x1/8(x7 - 1)
B. x1/8(x3/4 - 1)
C. x(x 3/4 - 1)
D. x7/8(1 - x 3/4)
Answer: B
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Use a proportion to solve the problem.On a map of the Fox River, 1 centimeter represents 5 kilometers. If a trail by the river is actually 22.00 kilometers long, what is the length of the river on the map?
A. 12 cm B. 4.4 cm C. 17 cm D. 6.4 cm
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Use the binomial formula to expand the binomial.(x + 7)5
A. x5 + 35x4 + 490x3 + 3430x2 + 12,005x + 16,807 B. x5 + 35x4 + 980x3 + 6860x2 + 12,005x + 16,807 C. x5 + 35x4 + 490x3 + 3430x2 + 12,005x + 7 D. x5 + 35x4 + 980x3 + 6860x2 + 12,005x + 7
Give the numerical coefficient of the term.9k2
A. 9 B. 81 C. 18 D. 2