Give the coordinates of the points shown on the graph.
A. A(6, 2), B(-3, 7)
B. A(6, 7), B(2, 7)
C. A(2, 28), B(7, -3)
D. A(6, 2), B(7, -3)
Answer: A
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j + 7k
A. a = 2T + 2tN
B. a = 
N
C. a = 2T + 
N
D. a = 2tN
Find the median.9, 15, 21, 29, 37, 37
A. 24.5 B. 29 C. 21 D. 25
Solve the problem.On the first four exams, your grades are 79, 98, 59, and 80. You are hoping to earn a C in the course. This will occur if the average of your five exam grades is greater than or equal to 70 and less than 80. What range of grades on the fifth exam will result in earning a C?
A. (24, 74] B. [24, 74) C. (34, 84] D. [34, 84)
An objective function and a system of linear inequalities representing constraints are given. Graph the system of inequalities representing the constraints. Find the value of the objective function at each corner of the graphed region. Use these values to determine the maximum value of the objective function and the values of x and y for which the maximum occurs.Objective Functionz = 3x - 2yConstraintsx ? 0 0 ? y ? 2 x - y ? 3 x + 2y ? 6
A. maximum: 10; at (4, 1) B. maximum: -4; at (0, 2) C. maximum: 2; at (2, 2) D. maximum: 9; at (3, 0)