Expand the binomial.(x - y)5
A. x5 - 5x4y + 10x3y2 - 10x2y3 + 5xy4 - y5
B. x5 - y5
C. x5 + 5x4y + 10x3y2 + 10x2y3 + 5xy4 + y5
D. -x5 + 5x4y - 10x3y2 + 10x2y3 - 5xy4 + y5
Answer: A
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Evaluate the double integral over the given region.
R = {(x, y): 0 ? x ? 1, 0 ? y ? 1}
A. 
B. 
C. 
D. 
The equation of an ellipse is given. Put the equation in standard form and sketch the ellipse.9x2 + 49y2 = 441
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.Amarillo Motors manufactures an economy car called the Citrus, which is notorious for its inability to hold a respectable resale value. The average resale value of a set of 1998 Amarillo Citrus's is summarized in the table below along with the age of the car at the time of resale and the number of cars included in the average. Fit a line of the form ln(V) = m?a + b to the data, where V is the resale value in thousands of dollars and a is the age of the car in years.. 
A. ln(V) = 0.315a B. ln(V) = 0.299a - 2.951 C. ln(V) = -0.303a + 2.953 D. ln(V) = 0.314a - 2.986
Solve the problem.The rear wheel of a lawn tractor has a 13-inch radius. Find the angle (in radians) through which a wheel rotates in 21 seconds if the tractor is traveling at a speed of 14 miles per hour? Round your answer to one decimal place when necessary.
A. 398 radians B. 22.6 radians C. 1,432,910.8 radians D. 152.5 radians