Solve the system of equations.
x + 3y - 2z = 133x + 
y + z = 18 x - 3y + 2z = -5
A. (9, 3, 0)
B. (9, 0, -1)
C. (6, 3, -1)
D. (6, 0, 0)
Answer: C
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Solve the problem.A satellite dish has a parabolic cross section and is 14 feet deep. The focus is 4 feet from the vertex. Find the width of the satellite dish at the opening. Round your answer to the nearest foot.
A. 30 ft B. 34 ft C. 38 ft D. 32 ft
Find the absolute extreme values of the function on the interval.f(x) = 5x2/3, -27 ? x ? 1
A. absolute maximum is 45 at x = -27 ; absolute minimum is 0 at x = 0 B. absolute maximum is 5 at x = 1 ; absolute minimum is 0 at x = 0 C. absolute maximum is 9 at x = -27 ; absolute minimum is 0 at x = 0 D. absolute maximum is 45 at x = -27 ; absolute minimum is 5 at x = 1
Find the LCM of the set of numbers.18, 13
A. 31 B. 234 C. 78 D. 13
Evaluate the expression.
4
A. 16
B. 
C. - 
D. -16