Solve by the elimination method. x = 6 - y8x + 8y = 48
A. Infinitely many solutions
B. No solution
C. (0, 0)
D. (1, 5)
Answer: A
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Decide whether the statement is true or false.If the radius of a sphere is multiplied by n, then the surface area is multiplied by n2.
A. True B. False
Solve the problem.The length of a table is 10 inches more than its width. If the area of the table is 
inches, what is its length?
A. 42 in. B. 32 in. C. 22 in. D. 64 in.
Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total cost function is given by 
where x represents the number of boxes of computer chips produced. The total profit function, P(x), is such that 
Find P(x).
A. P(x) = -0.3x2 + 37x - 9 B. P(x) = 0.3x2 + 37x - 18 C. P(x) = 0.3x2 + 30x - 27 D. P(x) = -0.3x2 + 30x + 9
Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.g(x) = x2 - 4x + 8
A. 
Vertex (2, -4)
x-int = (0, 0), (4, 0);
y-int = (0, 0)
B. 
Vertex (-2, -4)
x-int = (-4, 0), (0, 0);
y-int = (0, 0)
C. 
Vertex (-2, 4)
no x-intercepts;
y-int = (0, 8)
D. 
Vertex (2, 4)
no x-intercepts;
y-int = (0, 8)