Solve the system of equations. x + y + z = -5 x - y + 3z = -115x + y + z = -21
A. (-4, 1, -2)
B. (-2, 1, -4)
C. (-2, -4, 1)
D. (1, -4, -2)
Answer: A
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Solve the linear inequality. Express the solution using set-builder notation and interval notation. Graph the solution set.42x + 30 > 6(6x + 8)
A. {x|x ? 3}; [3, ?)
B. {x|x > 3}; (3, ?)
C. {x|x < 3}; (-?, 3)
D. {x|x ? 3}; (-?, 3]
One ball is drawn at random from a bag containing 7 red (R) balls and 9 white (W) balls. What is the probability that the ball is green (G)?
Write a word name for the number in the sentence.Astronomers predicted that it would take 900,070,000,100 earth years for the newly found supernova to make one revolution around the center of its galaxy.
A. Nine hundred million, seventy thousand, one hundred B. Ninety billion, seven hundred million, one hundred thousand C. Nine hundred billion, seventy million, one hundred D. Nine hundred seventy thousand, one hundred
The graph of an exponential function is given. Match the graph to one of the following functions.
A. y = 2.4x B. y = 0.65x C. y = 3.5x D. y = 0.32x