Is the following relation a function?

x

-2

0

5

7

y

-1

-3

-5

8

yes or no?

The area of a regular hexagon is 55 in^2. Find the length of a side. Round your answer to the nearest tenth. I know the answer is 4.6 in., but I have no idea how to solve it.

How to simplify 4x+6 (3x-2)

What is the sum of the geometric sequence 1, 3, 9, ... if there are 14 terms?

What is the greatest number of obtuse angles that a right triangle can contain? A) 3 B) 1 C) 0 C) 2

Ann and Bill play rock-paper-scissors. Each has a strategy of choosing uniformly at random out of rock, paper, and scissors every round (making independent selections each round). Each round can end in a win, loss, or a tie for each player. a.

Solve the equation below. 19 + x = 37

What's the long formula to find the surface area of a cylinder?

Laura walks 1/2 mile every 10 minutes. At this rate how far will she walk in an hour?

What is 45/35 in the most simplest form

If you are driving at a rate of 55 miles per hour, about how many feet per second are you traveling? A. 0.015 feet per second B. 80.67 feet per second C. 4840 feet per second D. 290400 feet per second