First, we should figure out the area of the entire face of the clock because we need that information to solve the problem. The formula for the area of a circle is A=pi*r^2. Since we know that r (radius) is equal to 11.25 feet, we can plug this in for r and solve for A: A=pi*11.25^2 which equals A=397.61 ft^2 rounded to the nearest hundredth.
Now, to find the area the hand sweeps over in 5 minutes, we should determine how much of the clock the hand sweeps over in 5 minutes. Think about it like this: since 5 minutes goes into 60 minutes 12 times (60/5=12), then 5 minutes is one twelfth of the clock's face. Therefore, we are going to divide the total area by 12 (397.61/12) to get 33.13 ft^2, so the answer is C.
I hope this helps.
Answer:
the answer is C
Step-by-step explanation:
Group like terms then
add like terms
d-2d-10+7=8-10+d
-d-3=-2+d
add d to both sides
-3=-2+2d
add 2 to both sides
-1=2d
divide both sides by 2
-1/2=d
Answer: (2r)⁸ or (2r)∧8
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
Double r = this means that we have to multiply the variable "r" by 2 .(2r)
Then raise the result to the 8th power = this means that the product (2r) is the base and 8 is the exponent.
Mathematically speaking
(2r)⁸ or (2r)∧8
Feel free to ask for more if needed or if you did not understand something.
