0.000254=2.5x10^-4 (^square root of -4)
14*15 is 210 which his the entire area. now divide 210/20 you get 10.5 so you will need at least 11 bags
Answer:
c(10)=40
c(15)=52.5
Step-by-step explanation:
c(10) means you plug 10 into your x same with (c15) you plug in 15 so for c(10) it would be 2.5(10) + 15 which is 40
Answer:
900 - 1= (31)(29)
Step-by-step explanation:
We need to factor 900 -1
We write each number in square form
900 can be written as 30^2
1 can be written as 1^2
![900 - 1= 30^2 - 1^2](https://tex.z-dn.net/?f=900%20-%201%3D%2030%5E2%20-%201%5E2)
Now we apply difference of square formula
a^2 - b^2 = (a+b)(a-b)
![30^2 - 1^2=(30+1)(30-1)](https://tex.z-dn.net/?f=30%5E2%20-%201%5E2%3D%2830%2B1%29%2830-1%29)
So 900 - 1= (31)(29)