Use an inverse matrix to find the solution to the system.
A. x = 1, y = 5, z = 1
B. x = 8, y = -1, z = 5
C. x = 7, y = 1, z = 5
D. x = 7, y = -1, z = -5
Answer: C
Mathematics
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A. 3
B. no slope
C. 0
D. 
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Provide an appropriate response.Multiply two fractions by 
the numerators and 
the denominators.
A. multiplying; adding B. adding; multiplying C. multiplying; canceling D. multiplying; multiplying
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Simplify.(10x2 + 4y)2
A. 100x4 + 80x2y + 16y2 B. 100x4 + 40x2y + 16y2 C. 100x2 + 80x2y + 16y2 D. 100x4 + 116x2y + 16y2
Mathematics
Use the intersection-of-graphs method to approximate the solution to the nearest hundredth.0.11(
+ 7x) + 0.09(?x + 6.0) = -7
A. {-3.78} B. {7.57} C. {-7.57} D. {3.78}
Mathematics