Solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.x + 3y - 2z - w = 44x + y + z + 2w = 23-3x - y - 3z - 2w = -27 x - y - 3z -2w = -19
A. {(2, 4, 3, 4)}
B. {(4, 23, -27, -19)}
C. {(1, 6, -1, 6)}
D. {(2 + w, 4 - 2w, 3 + 2w, w)}
Answer: A
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Identify the polynomial as a monomial, binomial, trinomial, or none of these.12c5 - 2c4 + 6c3
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find the intensity on a screen 20 ft from the light.
A. 2 foot-candles
B. 1 
foot-candles
C. 
foot-candle
D. 
foot-candle