Answer:
n = 5
Step-by-step explanation:
3 x (n+1)² = n² + (n+2)² + 34
3n² + 6n + 3 = n² + n² + 4n + 4 + 34
n² + 2n - 35 = 0
(n - 5) (n + 7) = 0
n is a positive number
n = 5
check: 5, 6, 7
6 x 6 x3 = 108
(5 x 5) + (7 x 7) + 34 = 25 + 49 + 34 = 108
I believe that the answer is C because lets say you decide that the cube will roll on 1 six times. if you roll the cube 6 times, then there is a 1/6 probability of the cube landing on 1, but the more times you roll the cube, the more chances there will be of the number landing that many times as you theorized
Step-by-step explanation:
To find the perimeter of something, we add all of the measurements of the sides together.
A rectangle has 4 sides, this means we must double the algebraic hints given to us.
If we add them all up together it will look like this:
x-9+x-9+3x-4+3x-4=138
If we simplify it by collecting the like terms:
8x-26=138
We add 26 onto 138
8x=164
To find out what x equals, we divide by 8:
164÷8= 20.5
Answer:
x=20.5cm
x-9 is 11.5
3x-4 is 57.5
I know that you will not give 100 points but just wanted to help.
