Find the inverse, if it exists, for the matrix.
A. 
B. 
C. 
D. The inverse does not exist.
Answer: A
Mathematics
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Solve the problem.Enrollment in a business seminar increased from 67 people to 87 people. What was the percent of increase?
A. 23% B. 77% C. 70.1% D. 29.9%
Mathematics
Find the midrange of the set of data.230, 218, 212, 212, 212, 212, 218, 214, 214, 214, 218, 218
A. 221.0 B. 216.0 C. 9.0 D. 539.0
Mathematics
Represent the shaded area in the figure group with a mixed number.
A. 12
B. 3
C. 15
D. 3
Mathematics
Solve the following quadratic equation using the Square Root Property. Make sure you simplify the final answer completely. Find the exact answer and a decimal approximation to the nearest tenth when possible.5x2 - 35 = 0
A. x = 
; x ? 2.6
B. x = 
or x = - 
; x ? 1.2 or x ? -1.2
C. x = 
or x = -
; x ? 2.6 or x ? -2.6
D. x = 
; x ? 2.6
Mathematics