Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. (5, 1, 2)
B. (5, -1, -2)
C. (6, -1, 2)
D. (1, 2, 1)
Answer: A
Mathematics
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Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.3x + y + z = 1512x + 4y + 4z = 60
A. x = 0, y = 15, z = 0 B. Unlimited: x = 0, y = 15, z = 0; x = 5, y = 0, z = 0 C. Inconsistent D. x = 5, y = 0, z = 0
Mathematics
Find the area of the circle. Use 3.14 or 
for ? as indicated.Use 3.14 for ?.
A. 18.84785 yd2 B. 30.772 yd2 C. 15.386 yd2 D. 75.3914 yd2
Mathematics
Find the inverse of the function.
A. 
B. 
C. 
D. 
Mathematics
Determine whether f(x) could represent a linear function. If it could, write f(x) in the form f(x) = mx + b.
A. No B. Yes; f(x) = 2x + 6
Mathematics