The mean is all of them added together divided by the number, so multiple the mean by the number of sides, 3, and that's the perimeter. 18 x 3 = 54
Answer:
4.50
Step-by-step explanation:
First add 50 and 40 to get 90. Then multiply that by 0.05 to get 4.5.
Answer:
we have to learn this in middle school
Step-by-step explanation:
Answer:
y=(0,-3)
Step-by-step explanation:
To find the y-intercept, substitute in 0 for x and solve for y
