Solve the problem.Two different tests are designed to measure employee productivity and dexterity. Several employees are randomly selected and tested with these results. 
Find the regression line y = mx + b.
A. y = 2.03x + 2.36
B. y = - 0.329x + 75.3
C. y = 1.91x + 5.05
D. y = 1.53x + 10.7
Answer: C
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Solve the differential equation.
- 
= (ln x)2
A. y = 
x3 + Cx
B. y = 
(ln x) 3 + Cx
C. y = x (ln x) 3 + Cx
D. y = 
x (ln x) 3 + Cx
Find a parametrization for the line segment joining the points.(3, -7, 4), (0, -7, 7)
A. x = 3t, y = -7t, z = -3t + 7, 0 ? t ? 1 B. x = -3t + 3, y = -7t, z = 3t + 4, 0 ? t ? 1 C. x = -3t + 3, y = -7, z = 3t + 4, 0 ? t ? 1 D. x = 3t, y = -7, z = -3t + 7, 0 ? t ? 1
Convert to Fahrenheit. Use the formula F = 
C + 32 or F = 1.8C + 32. Round your answer to the nearest tenth if necessary.2100°C
A. 1187.0°F B. 3786.4°F C. 3812°F D. 3837.6°F
Solve the problem.A certain object moves in such a way that its velocity (in m/s) after time t (in s) is given by 
Find the distance traveled during the first four seconds by evaluating 
Round your answer to the nearest tenth of a meter.
A. 44.0 m B. 80.0 m C. 101.3 m D. 53.3 m