Solve.x + y + z = 6x - z = -2 y + 3z = 11
A. (-1, 2, -3)
B. (3, -2, 5)
C. (1, 2, 3)
D. (0, 4, 2)
Answer: C
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Solve the problem.Find the equation of a circle in standard form that is tangent to the line x = -3 at (-3, 5) and also tangent to the line x = 9.
A. (x - 3)2 + (y + 5)2 = 36 B. (x - 3)2 + (y - 5)2 = 36 C. (x + 3)2 + (y + 5)2 = 36 D. (x + 3)2 + (y - 5)2 = 36
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.x-8 x6
A. x2
B. -x2
C. - 
D. 
Identify the numerical value and direction.+9
A. The value is -9 and the direction is to the right B. The value is 9 and the direction is to the right. C. The value is 9 and the direction is to the left. D. The value is -9 and the direction is to the left.
Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 