Answer:
1300y^2+1400y+343
Step-by-step explanation:
Use FOIL to cancel out the products
Step-by-step explanation:
the total mass of each empty carton
1284×2568kg
the total mass of books alone
30816×10=12840kg
40 cups, 16+16=32, 32+1/2 16=40, 16÷2=8:) hope i helped
Answer:
![3,462\ bacteria](https://tex.z-dn.net/?f=3%2C462%5C%20bacteria)
Step-by-step explanation:
In this problem we have a exponential function of the form
![y=a(b^x)](https://tex.z-dn.net/?f=y%3Da%28b%5Ex%29)
where
x is the time in hours
y is the numbers of bacteria
a is the initial value
b is the base
r is the rate of growth
b=(1+r)
we have that
![a=3,000\ bacteria](https://tex.z-dn.net/?f=a%3D3%2C000%5C%20bacteria)
For x=8, y=3,300
substitute in the exponential function
![3,300=3,000(b^8)](https://tex.z-dn.net/?f=3%2C300%3D3%2C000%28b%5E8%29)
solve for b
![1.1=(b^8)](https://tex.z-dn.net/?f=1.1%3D%28b%5E8%29)
![b=\sqrt[8]{1.1}](https://tex.z-dn.net/?f=b%3D%5Csqrt%5B8%5D%7B1.1%7D)
![b=1.0120](https://tex.z-dn.net/?f=b%3D1.0120)
Find the value of r
![r=b-1=1.0120-1=0.0120=1.20\%](https://tex.z-dn.net/?f=r%3Db-1%3D1.0120-1%3D0.0120%3D1.20%5C%25)
The equation is equal to
![y=3,000(1.012^x)](https://tex.z-dn.net/?f=y%3D3%2C000%281.012%5Ex%29)
For x=12 hours
substitute the value of x in the equation
![y=3,000(1.012^{12})](https://tex.z-dn.net/?f=y%3D3%2C000%281.012%5E%7B12%7D%29)
![y=3,462\ bacteria](https://tex.z-dn.net/?f=y%3D3%2C462%5C%20bacteria)
Answer:
I don’t know I think it is 1,8 tho
Step-by-step explanation:
Sorry if it’s wrong