Solve the system of linear equations using the elimination method. x = 0 - y - z x - y + 5z=-164x + y = 3 - z
A. (-3, 2, 1)
B. (1, 2, -3)
C. (-3, 1, 2)
D. (2, -3, 1)
Answer: B
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The following graph shows the populations of the metropolitan areas of City X and City Y over six years. 
At the time when the populations of the two metropolitan areas were equal, what was the approximate population of each area?
A. about 1.03 million B. about 0.87 million C. about 0.92 million D. about 0.95 million
List all the elements of B that belong to the given set.B = {2, 
, -10, 0, 
}Real numbers
A. 
B. {2, -10, 0}
C. 
D. 
Find the vertex.f(x) = -x2 + 6x - 14
A. (3, 5) B. (-3, -5) C. (3, -5) D. (5, -3)
An account contains A dollars and increases or decreases by R%. For A and R: (a) Find the increase or decrease in the value of the account. (b) Find the value of the account. (c) By what factor did the account value increase or decrease? A = $200, R = 180%
A. (a) $385; (b) $585; (c) 3.8 B. (a) $370; (b) $570; (c) 1.3 C. (a) $360; (b) $560; (c) 2.8 D. (a) $310; (b) $510; (c) 1.8