Multiply. Simplify by combining like terms.(x - 11y)(x2 + 6xy - 2y2)
A. x3 - 5x2 - 64y - 22y3
B. x3 + 17x2y + 64xy2 - 22y3
C. x3 + 17x2y + 68xy2 + 22y3
D. x3 - 5x2y - 68xy2 + 22y3
Answer: D
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Solve the problem.If Marco hired a plumber for 5 hours the total cost would be $170. If he hired the same plumber for 13 hours , the total cost would be $410. Assume a linear relationship between the cost, y, in dollars and the number of hours worked, x. Find an equation in slope-intercept form that models the relationship between the cost and the number of hours worked.
A. y = 30x + 20 B. y = 30x + 20x C. y = 35x + 20 D. y = 30x + 60
Simplify the expression.3-2
A. -9
B. 
C. 9
D. 
Let x be a continuous random variable with a standard normal distribution. Find the requested probability.P(-0.75 ? x ? 0.75)
A. 0.5528 B. 0.5468 C. 0.2734 D. 0.7734
List the first n terms of the geometric sequence satisfying the given conditions.a1 = 
, r = 4, n = 4
A. 
, 
, 
, 
B. 4, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 