Determine if the equation specifies a function with independent variable x. If so, find the domain. If not, find a value of x to which there corresponds more than one value of y.xy = -5

A. A function with domain all real numbers except x = 0
B. Not a function; for example, when x = -5, y = ±1


Answer: A

Mathematics

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Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 180 m. The hypotenuse is 60 m longer than the length of the longer leg. How long is the longer leg?

A. 240 m B. 360 m C. 180 m D. 300 m

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Express the number in scientific notation.39,769

A. 3.9769 × 10-4 B. 3.9769 × 104 C. 3.9769 × 105 D. 3.9769 × 101

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