Find the inverse, if it exists, for the matrix.
A. 
B. 
C. 
D. The inverse does not exist.
Answer: D
Mathematics
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Simplify.19 + 21 ? 27
A. 426 B. 586 C. 1080 D. 67
Mathematics
Provide an appropriate response.Convert 25 mi/gal to ft/qt.
A. 1,320 B. 100 C. 132,000 D. 33,000 E. none of the above
Mathematics
Solve the problem.If a rock is thrown vertically upward from the top of a building 80 feet high with an initial velocity of 64 feet per second, the height, h, above ground level after t seconds is given by h = -16t2 + 64t + 80, where h is in feet and t is in seconds. What is the maximum height the rock will reach?
A. 80 ft B. 84 ft C. 144 ft D. 16 ft
Mathematics
Sketch the logarithmic function.f(x) = -2 ln x
A. 
B. 
C. 
D. 
Mathematics