Which of the following expressions represents a function?

a. x2 y2 = 9

b. { (4, 2), (4, - 2), (9, 3), (9, - 3) }

c. x = 4

d. 2x y = 5

90 students represent x percent of the boys at Jones Elementary School. If the boys at Jones Elementary make up 40% of the total school population of x students, what is x? A. 125 B. 150 C. 225 D. 250 E. 500

To prove that ΔDEF ≅ ΔDGF by SAS, what additional information is needed?

You own a house cleaning business. It takes you 2 hours and 45 minuets to clean a house. You have 3 house to clean tomorrow.

Determine if it is possible to form a triangle using the set of segments with the given measurements. Explain your reasoning. 7 in., 8.7 in, 15.4 in.

Write a real-world problem that gives extra information. Tell what the extra information is. Best answer I will mark as brainliest

What polynomail is this 2x-6

Change the decimal 13/20 to a decimal A. 0.65 B. 0.065 C. 0.15 D. 0.015

For the basic function f (x) = x, what conclusions can you make about fix) and f (x) - 5? Select all that apply. a. They intercepts are the same. b. The function () - 5 has a greater rate of change c. They are parallel lines: d.

What is the coordinate if (2,2) is reflected over x=2

What is 2 (x - 1/2) = 3 (5-2x)