Solve the system by elimination. x + 5y = -5-7x + 6y = 35
A. {(-5, 0)}
B. {(-4, -5)}
C. ?
D. {(5, -1)}
Answer: A
Mathematics
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Graph the inequality.x ? 
A. 
B. 
C. 
D. 
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = -5yi + 5xj + 4z4k; C: r(t) = cos ti + sin tj, 0 ? t ? 8
A. W = 80 B. W = 40 C. W = 160 D. W = 0
Mathematics
Find the linearization of the function at the given point.
at 
A. L(x, y, z) = - 4x - 
y + 3z + ln 3 - 1
B. 
C. 
D. 
Mathematics
Use an Euler diagram to determine whether the argument is valid or invalid.Some cars are considered sporty.Some cars are safe at high speeds.? Some sports cars are safe at high speeds.
A. Invalid B. Valid
Mathematics