Solve the problem.The change in a certain engineer's salary over time can be approximated by the linear equation 
where y represents salary in dollars and x represents number of years on the job. According to this equation, after how many years on the job was the engineer's salary $61,000?
A. 8 years
B. 10 years
C. 11 years
D. 9 years
Answer: D
Mathematics
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Use the product rule to simplify.
A. 15
B. 6
C. 36
D. 6
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For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(5
, 5)
A. (20, 30°) B. (5, 45°) C. (10, 30°) D. (10, 60°)
Mathematics
Factor the expression. Express your answer so that only positive exponents occur. x-3/7 - x-4/7
A. x-4/7(x1/7 - 1) B. x-4/7(x1/7 - x) C. x-4/7(x1/7 + 1) D. x-4/7(x1/7)
Mathematics
Round the decimal to the given place value.14.12481, nearest hundredth
A. 14.12 B. 14.13 C. 14.125 D. 14.1248
Mathematics