If Yarmouth is 6.5C and Sydney is 8C colder you would just subtract.
6.5-8=-1.5C
Answer:
The answer to your question is x = 23.36
Step-by-step explanation:
![\frac{1250}{1.04^{x} } = 500](https://tex.z-dn.net/?f=%5Cfrac%7B1250%7D%7B1.04%5E%7Bx%7D%20%7D%20%3D%20500)
Solve for x
1250 = 500(1.04)![^{x}](https://tex.z-dn.net/?f=%5E%7Bx%7D)
![\frac{1250}{500} = 1.04^{x}](https://tex.z-dn.net/?f=%5Cfrac%7B1250%7D%7B500%7D%20%3D%201.04%5E%7Bx%7D)
Apply logarithms
![2.5 = 1.04^{x}](https://tex.z-dn.net/?f=2.5%20%3D%201.04%5E%7Bx%7D)
log 2.5 = x log 1.04
x = 0.398 / 0.017
x = 23.36
Hey there!
To start, this is an exponential, meaning your equation should be in this format:
y=a(1±b)^x where a is the principal amount, b is the rate, and x is the years passed. If b is a decrease rate, you would subtract it from one, and if it is an increase rate, you would add it to 1. In this case, the rate 5.5% is a decrease rate so you would perform 1-5.5% or 1-0.055 which would be 0.945.
Now, plug in your known values:
y=3900(0.945)^15
Finally, simplify to get:
y=1669.33
Now, round to the nearest whole number (you can't have a decimal of a tree) to get 1669 trees after 15 years.
Answer:
![12π](https://tex.z-dn.net/?f=12%CF%80)
Step-by-step explanation:
Perimeter of the semi-circle:
![\frac{2 \times 12 \timesπ }{2} = 12π](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%20%5Ctimes%2012%20%5Ctimes%CF%80%20%7D%7B2%7D%20%20%3D%2012%CF%80)