Find the inverse, if it exists, of the given matrix.A = 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Sketch a typical level surface for the function.f(x, y, z) = e(x2 + y2 + z2)
A. 
B. 
C. 
D. 
Mathematics
Find the grade point average for the following student. Assume A = 4, B = 3, C = 2, D = 1, and F = 0. Round answer to the nearest tenth.
A. 2.1 B. 4.1 C. 3.1 D. 9.4
Mathematics
Solve the problem.The distance d, in feet, a bomb falls in t seconds is given by 
How many seconds are required for a bomb released at 15,000 feet to reach its target? (If necessary, round your answer to two decimal places.)
A. 2230.41 seconds B. 139.40 seconds C. 69.70 seconds D. 830.30 seconds
Mathematics
Find the measure of each angle in the problem.
A. 108° and 72° B. 100° and 80° C. 60° and 40° D. 216° and 144°
Mathematics