Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(-5x + 11y)(-3x + 11y)
A. 15x2 - 88xy - 88y2
B. 15x2 - 33xy + 121y2
C. 15x2 - 55xy + 121y2
D. 15x2 - 88xy + 121y2
Answer: D
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Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.5x + 3.1y - 2.3z + 0.6w = 2.76.1x - 0.5z - 3.4w = 0.8 11.5y - 2.2w = 04.0x + 3.0y - 2.1z = 9
A. (3.2, 1.0, 3.7, 5.0) B. (7.9, 2.4, 9.0, 12.3) C. (4.3, 1.3, 4.9, 6.7) D. (3.6, 1.1, 4.1, 5.6)
Find the characteristic equation of the given matrix.A = 
A. (8 - ?)(-1 - ?)(5 - ?)(2 - ?) = 0 B. (8 - ?)(3 - ?)(-6 - ?)(-5 - ?) = 0 C. (2 - ?)(-1 - ?)(-6 - ?)(-5 - ?) = 0 D. (-5 - ?)(-6 - ?)(-1 - ?)(2 - ?) = 0
Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 11
C. 
D. 
Graph a line that is parallel to the given line and passes through the given point.
A. 
B. 
C. 
D. 