The area of a circle is pi*r^2 so 324/pi is 103 if you take the square root of that it is 10.15. so you would use the circumference formula now, which is 2 pi r so 2*pi*10.15= 63.77
Because tens numbers are easier to work with. If you have the problem 9+3, you can take one out of three and add it to the nine to get 10+2.
The minimum electric rate in cents per kwh for which the 12-year total cost will be less for the first freezer is 8.61 cents
<h3>How to calculate the rate?</h3>
Let x = minimum electric rate (Cents/kWh)
Total months in 12 years is 12*12 = 144 m
1st freezer
Total cost over 12 years is
623.95 (cost) + (90 kWh/m)*(144 m)(x/100 $/kWh)
= 623.95 + 129.6x
2nd freezer
Total cost over 12 years is
500 + 100*144*(x/100)
= 500 + 144x
For the 1st freezer to cost less over 12 years,
623.95 + 129.6x < 500 + 144x
123.95 < 14.4x
8.61 < x
The minimum rate is 8.61 cents per kWh
Learn more about rate on:
brainly.com/question/25537936
#SPJ1
Answer:
Subtract 2π 2 π from 11π3 11 π 3 . The resulting angle of 5π3 5 π 3 is positive, less than 2π 2 π , and coterminal with 11π3 11 π 3 .
Step-by-step explanation:
1.050 divided by 25 = 42 divided by 7 = 6
this means each cow gives 42 gallons of milk everyday when you have milked it in the morning and evening.
hope this helps!!!!
rate brainest answer pls
:D
