Solve the following system of equations by substitution. If both variables cancel out, state the solution as no solution or infinitely many solutions.8x + 2y = 59 + y7x + 6y = 26
A. (8, -5)
B. no solution
C. (-5, 8)
D. (9, -6)
Answer: A
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Provide an appropriate response.Suppose that A and B are two matrices such that A + B, A - B, and AB all exist. What can you conclude about the dimensions of A and B?
A. A and B have the same dimension, but are not necessarily square matrices. B. A and B are square matrices of the same dimension. C. There are no dimensions of A and B that would make this possible. D. A is a row matrix and B is a column matrix.
Find the sum.-11 + (-20)
A. -9 B. -31 C. 9 D. 31
Perform the indicated operations. Write the resulting polynomial in standard form.(x - 12y)(x + 4y)
A. x2 - 8xy - 48y2 B. x - 8xy - 48y C. x2 - 11xy - 48y2 D. x2 - 8xy - 8y2
Determine whether the graph shown is the graph of a polynomial function.
A. Yes B. No