Solve the systems of equtions using the addition method. 
A. {(-1, -6)}
B. {(-2, -5)}
C. no solution; ?
D. {(-1, -5)}
Answer: A
Mathematics
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at (1, 1, 1); R: |x - 1| ? 0.1, |y - 1| ? 0.1, |z - 1| ? 0.1
A. |E| ? 0.0154 B. |E| ? 0.0173 C. |E| ? 0.0231 D. |E| ? 0.0185
Mathematics
Graph the integer on the number line.-8 
A. 
B. 
C. 
D. 
Mathematics
Multiply.(5x + 4)2
A. 25x2 + 16 B. 25x2 + 40x + 16 C. 5x2 + 40x + 16 D. 5x2 + 16
Mathematics
Establish the identity.csc u - sin u = cos u cot u
What will be an ideal response?
Mathematics