Solve the problem.The sum of three numbers is 3. The first, minus the second, plus 4 times the third, is 5. The third, plus 4 times the first, plus the second, is 0. What are the numbers?
A. -1, -1, 2
B. -1, 2, 2
C. 1, -2, -2
D. No solution
Answer: B
Mathematics
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Determine where the given function is concave up and where it is concave down. f(x) = x3 + 3x2 - x - 24
A. Concave down on (-?, -1) and (1, ?), concave up on (-1, 1) B. Concave up on (-?, -1), concave down on (-1, ?) C. Concave down for all x D. Concave up on (-1, ?), concave down on (-?, -1)
Mathematics
Find the area or volume.Find the area of the region in the first quadrant between the curve y = e-6x and the x-axis.
A. 1
B. 
e
C. 
D. 6
Mathematics
Use the multiplication property of equality to solve the equation.
= -8
A. 24 B. -24 C. -11 D. 11
Mathematics
Solve using the elimination method.- x + 4y = -4-3x - 4y = 20
A. (-3, -3) B. (-4, -2) C. No solution D. (2, -4)
Mathematics