Solve the system. x - y + 4z = 35x + z = 0 x + 5y + z = -15
A. (0, 0, -3)
B. (0, -3, 3)
C. (0, -3, 0)
D. No solution
Answer: C
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Find the mean of the list of data.15, 17, 19, 19, 17, 15
A. 18 B. 16 C. 19 D. 15 E. 17
Find numbers a and b, or k, so that f is continuous at every point.
A. k = 17 B. k = 2 C. k = 3 D. k = - 2
Solve the problem.A pair of six-sided dice are rolled. The observation is the number that comes up on each die. The event described by E: "at least one die will come up as an even number" is
A. {(1, 2), (1, 4), (1, 6), (2, 1), (2, 3), (2, 5), (3, 2), (3, 4), (3, 6), (4, 1), (4, 3), (4, 5), (5, 2), (5, 4), (5, 6), (6, 1), 
(6, 5)}.
B. {(2, 2), (2, 4), (2, 6), (4, 2), (4, 4), (4, 6), (6, 2), (6, 4), (6, 6)}.
C. {(1, 2), (1, 4), (1, 6), (2, 1), (2, 3), (2, 4), (2, 5), (2, 6), (3, 2), (3, 4), (3, 6), (4, 1), (4, 2), (4, 3), (4, 5), (4, 6), 
(5, 4), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5)}.
D. {(1, 2), (1, 4), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 2), (3, 4), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), 
(4, 6), (5, 2), (5, 4), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}.
E. none of these
A patient's temperature is 
above normal. (
Fahrenheit is considered normal.) What is his temperature?
?
A. 
B. 
C. 
D. 
E. 