Solve the system. 4x - 5y = 4 -4x + 5y = 7
A. {(-1, -1)}
B. {(4, 7)}
C. ?
D. 
Answer: C
Mathematics
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Provide an appropriate response.Does the curve y = x3 + 4x - 10 have a tangent whose slope is -2? If so, find an equation for the line and the point of tangency. If not, why not?
What will be an ideal response?
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Compute.9 yr - 2 yr 4 mo
A. 6 yr 3 mo B. 6 yr 8 mo C. 7 yr 8 mo D. 7 yr 4 mo
Mathematics