Answer:
56.52
Step-by-step explanation:
c=2
r
C=2*3.14*9
C=56.52
Answer:
-9
Step-by-step explanation:
-9+2-2=-9
Answer:
The balance after four years is $1129.27
Step-by-step explanation:
The formula for compound interest, including principal sum, is 
- A = the future value of the investment/loan, including interest
- P = the principal investment amount (the initial deposit or loan amount)
- r = the annual interest rate (decimal)
- n = the number of times that interest is compounded per unit t
- t = the time the money is invested or borrowed for
∵ $800 is deposited in an account
∴ P = 800
∵ The account pays 9% annual interest
∴ r = 9% = 9 ÷ 100 = 0.09
∵ The interest is compounded annually
∴ n = 1
∵ The time is 4 years
∴ t = 4
- Substitute the values of P, r, n, and t in the formula above
∵ 
∴ 
∴ A = 1129.265
∴ The balance after four years is $1129.27
Answer:
The correct answer is 11°F.
Step-by-step explanation:
To solve this problem, we simply need to find the change in temperature. This is modeled below:
Change in temperature = final temperature - initial temperature
Change in temperature = 57 - 46 = 11
Therefore, the correct answer is 11 degrees Fahrenheit.
Hope this helps!
Let the number be x and 2x-5 from the above given condition
x+2x-5=70
or
3x=75 s0 x=25
Hence, the number are 25 and 45