Evaluate the function f at the indicated value.
{8x, if x ? -1x - 6, if x > -1
A. -11
B. -1
C. -40
D. 40
Answer: C
Mathematics
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Simplify the expression. Assume all variables represent positive real numbers.
A. 4x2
B. 4xy2
C. 4xy
D. 4x
Mathematics
The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = 2-x B. f(x) = -2x C. f(x) = -2-x D. f(x) = 2x
Mathematics
Solve.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 8 m
A. 95 m B. 9.5 m C. 9.7 m D. 3.1 m
Mathematics
Answer the question.Which of the following statements are true?I: A linear transformation from ? to ?n is called a linear functional.II: The convex hull of a closed set is closed.
A. II B. Both I and II C. I D. Neither I or II
Mathematics