Solve the system of equations using substitution.
A. x = -4, y = 3; x = 4, y = 3
B. x = -4, y = 3; x = -3, y = -4; x = 3, y = -4; x = 4, y = 3
C. x = 9, y = 68; x = 16, y = 243
D. x = -3, y = -4; x = 3, y = -4
Answer: B
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At the given point, find the slope of the curve or the line that is tangent to the curve, as requested.5x2y - ? cos y = 6?, tangent at (1, ?)
A. y = -2?x + ?
B. y = - 
x + 
C. y = ?x
D. y = -2?x + 3?
Solve the system using Gaussian elimination.
A. {(6, 7, 9)} B. ? C. {(-6, 9, 12)} D. {(6, 9, 7)}
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A. 11,155 ft2 B. 424 ft2 C. 5,577.5 ft D. 11,155 ft
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What will be an ideal response?