How do I know if a relation is a function?

Which expression is equivalent to x^2+3x+3 [ (2x^2+13x+15) : (x+5) ]

The walls, ceiling and floor of a cubic room need to be painted. The edge length for the cube is 3 meters. What is the total surface area that will be painted in the room? A. 27m^2 B. 30m^2 C. 36m^2 D. 54m^2

Solve log8 (x+2) - log8 (x-1) = 2/3

What are the values of x when x^2+x-6=-4

The weights (in pounds) of 30 newborn babies are listed below. find q1. 5.5 5.7 5.8 6.0 6.1 6.1 6.3 6.4 6.5 6.6 6.7 6.7 6.7 6.9 7.0 7.0 7.0 7.1 7.2 7.2 7.4 7.5 7.7 7.7 7.8 8.0 8.1 8.1 8.3 8.7

Types 120 words in 100second. How many seconds does it take to type 258

Write a ratio for the following description: Kaleel made three times as many baskets as john during basketball practice.

If you were on the moon, your weight would only be 0.17 of your weight on Earth. If you weigh 195.75 pounds on Earth, how much would you weigh on the moon?

Find the center, vertices, and foci of the ellipse with equation x^2/100+y^2/64 = 1.

The first person has $15 and saves $1.50 each day. The second person has $55 and spends $4.50 each day. In about how many days will they have the same amount of money? a 7 days b 15 days c 21 days d 12 days