Solve the system as matrix equations using inverses.- 2x1 + 6x2 = 6 3x1 + 2x2 = 13
A. (-2, -3)
B. (2,3)
C. (-3 , - 2)
D. (3,2)
Answer: D
Mathematics
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Simplify the expression by using the order of operations.7 + 6 ÷ 2 + 9 + 
A. 12 B. 18 C. 19 D. 11
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A. 2.5 hr B. 1.2 hr C. 5 hr D. 1.8 hr
Mathematics
Perform the indicated operation and round as indicated.
thousandths
A. 35.539 B. 355.885 C. 35.589 D. 355.385
Mathematics