Add the length of all the sides. :) It's like the length of all the edges.
Answer:
(x + 5) (x + 4)
Step-by-step explanation:
Simplify the following:
x^2 + 9 x + 20
The factors of 20 that sum to 9 are 5 and 4. So, x^2 + 9 x + 20 = (x + 5) (x + 4):
Answer: |
| (x + 5) (x + 4)
15.5 = 16 beacause u round .5 to 15
3 * (x^2) = 15x
3x^2 -15x = 0
x= - -15 +- sq root (225 -4*3*0) / 2*3
x = [15 +-sq root (225 -4*3*0] / 6
x1 = [15 +15] / 6
x1 = 5
x2 = [15 -15] / 6
x2 = 0
The number is 5
Check
3 * 5^2 = 15 * 5
75 = 75
The answer to this question is 99/4, or 24.75, or 24 3/4.
They are all the same answer
I hope this helps!!!!!!