Use a graphing utility to find the inverse of the matrix, if it exists. Round answers to two decimal places, if necessary. 
A. 
B. 
C. 
D. 
Answer: B
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Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so. 3x - 2y = 42(-3x + 2y) = 7
A. all points on the line 3x - 2y = 4; dependent system B. (2, 1) C. (1, 2) D. empty set; inconsistent system
Provide an appropriate response.Following are box-and-whisker plots comparing the study times in hours per week for Sarah and Elaine.
What are the median study times for both Sarah and Elaine?
A. Sarah, 5 hours; Elaine, 8 hours B. Sarah, 6 hours; Elaine, 3 hours C. Sarah, 3 hours; Elaine, 6 hours D. Sarah, 2 hours; Elaine, 3 hours
Simplify.
A. 
B. 
C. 
D. 
Write the decimal in numbers.Three thousand and eighty-five ten-thousandths
A. 3085.0000 B. 3000.0085 C. 30,085 D. 3000.085