Use a graphing calculator to find the inverse of the matrix. Give five decimal places, if necessary.A = 
A. 
B. 
C. 
D. 
Answer: A
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Solve.A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 3 m down from the top of the dome the ceiling is 15 m wide, find the best location for the light source.
A. 9.4 m down from the top B. 18.8 m down from the top C. 4.7 m down from the top D. 14.1 m down from the top
Give an appropriate answer.Let
f(x) = 16. Find
log2 f(x).
A. 4 B. -6 C. 2 D. 16
Determine if the ordered pair is a solution to the given inequality.7x + 4y ? -10; (2, 3)
A. Yes B. No
Prepare a frequency distribution for the given data with columns for intervals and frequencies.A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows. Use 8 intervals starting with 
.29 30 36 41 45 50 57 61 28 50 36 5860 38 36 47 40 32 58 46 61 40 55 3261 56 45 46 62 36 38 40 50 27
A. 
B. 
C. 
D. 