Find the unit vectors that are parallel to the tangent line to the curve y=2x² at the point (,4).
What will be an ideal response?
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Give the coordinates of the points shown on the graph. 
A. A = (6, 6), B = (5, 6) B. A = (6, 5), B = (-7, 6) C. A = (5, 28), B = (6, -7) D. A = (6, 5), B = (6, -7)
Use the given information to find the exact value of the expression.tan ? = 
, ? lies in quadrant III, and cos ? = - 
, ? lies in quadrant II
Find sin (? + ?).
A. - 
B. 
C. 
D. 
Find the median of the list of data.$69.15, $53.40, $79.70, 
A. $53.40 B. $66.00 C. $69.15 D. $79.70
Solve the problem.The rate of expenditure of a particular machine is given by 
where x is time measured in years. Maintenance costs through the second year are $88. Find the total maintenance function.
A. M(x) = 15(x2 + 5)3/2 - 47 B. M(x) = 15(x2 + 5)3/2 + 73 C. M(x) = 5(x2 + 5)3/2 + 73 D. M(x) = 5(x2 + 5)3/2 - 47