Use a graphing calculator to find the coordinates of the turning points of the graph of the polynomial function in the indicated domain interval. Give answers to the nearest hundredth.f(x) = -x4 + 26x2 - 25; [3, 4]
A. (5, 925.00)
B. (3.61, 144.00)
C. (0, 25)
D. (-4, 144.00)
Answer: B
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Complete.4000 mcg = 
mg
A. 400 B. 0.4 C. 40 D. 4
Use the vectors v, u, w, and z to draw the indicated vector. 
z - v
A. 
B. 
C. 
D. 
Solve the problem.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. By using linear regression, the following function is obtained: 
where x is the number of hours spent in the lab and y is the grade on the test. Use this function to predict the grade of a student who spends 14 hours in the lab. Round to the nearest tenth. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. 62.6 B. 74.6 C. 65.4 D. 58.6
Solve the system of equations.2x + 3y 
= -53x - 4y 
= 225x + y + 3z = -2
A. {(3, -2, -5)} B. {(-5, -2, 3)} C. {(-2, 3, -5)} D. {(3, -5, -2)}