Use the inverse formula 
to find the inverse of the matrix (if it exists).
?
?
?
A. ?
B. ?
C. ?
D. 
E. ?Does not exist
Answer: E
Mathematics
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Calculate the surface area of the given surface.The surface f(x,y) = x2 + y2, -1 ? x, y ? 2. (Hint: Do the first integral by substitution or using a formula from the Table of Integrals. Use numerical integration to do the outer integral.)
A. 35.5222 B. 18.4734 C. 25.3332 D. 29.3516
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Find the probability.A class consists of 54 women and 88 men. If a student is randomly selected, what is the probability that the student is a woman?
A. 
B. 
C. 
D. 
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Write as a percent. 9.3
A. 0.0093% B. 93% C. 930% D. 0.93%
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Evaluate the expression.
A. 6!
B. 6
C. 
D. 1
Mathematics