Factor the difference of two squares.81x2 - 121y2
A. (9x - 11y)2
B. (9x + 11y)(9x - 11y)
C. (9x + 11y)2
D. prime
Answer: B
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Solve the problem.The number of new mini-vans sold by a particular salesperson during the month of March is exponentially distributed with a mean of 6. What is the probability that the salesperson will sell between 4 and 6 mini-vans in March?
A. 0.128 B. 0.110 C. 0.109 D. 0.146
Graph the ellipse.4(x - 1)2 + 9(y + 1)2 = 36
A. 
B. 
C. 
D. 
Find the simple interest. Round your answer to the nearest cent.Principal = $300Rate = 8%Time in years = 5
A. $120.00 B. $7.50 C. $12.00 D. $480.00
Describe the transformations that produce the graph of g from the graph of f.
; g(x) = -3|x|
A. Stretch horizontally by a factor of 3. Reflect it across the x-axis. B. Stretch horizontally by a factor of 3. Reflect it across the y-axis. C. Stretch vertically by a factor of 3. Reflect it across the y-axis. D. Stretch vertically by a factor of 3. Reflect it across the x-axis.