Solve.Two particles, m1 and m2, collide in a head-on, one-dimensional, elastic collision. If the first particle had an initial speed of 1 m/sec and the second particle was initially at rest, then the final speeds of the two particles, v1 and v2 (in m/sec), are as follows: v1 = 
v2 = 
Express the difference between the final speeds (v1 - v2) as a single rational expression.
A. 
m/sec
B. 1 m/sec
C. 
m/sec
D. -1 m/sec
Answer: D
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Assume the median income of a high school graduate is 42,833 dollars per year. For each year of college education, median income increases by 17%. What is the expected median income if 4 years of college are completed? Round your answer to the nearest cent. ? ?
A. 80,264.21 dollars per year B. 71,959.44 dollars per year C. 50,114.61 dollars per year D. None of the above
Change the number to polar form and then perform the indicated operations. Express the result in rectangular form.(6 - 6j)(4 + 8j)
A. 72 - 24j B. -24 - 72j C. 72 + 24j D. -48j2 + 24j + 24
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 8 degrees? (Round to the nearest foot.)
A. 13 ft B. 69 ft C. 43 ft D. 32 ft
Find the intercepts and then graph the line.2x - y = -4
A. x-intercept: (2, 0); y-intercept: (0, -4)
B. x-intercept: (2, 0); y-intercept: (0, 4)
C. x-intercept: (-2, 0); y-intercept: (0, -4)
D. x-intercept: (-2, 0); y-intercept: (0, 4)