Lets solve f(5). First, replace all "n"s in the equation with 5s. F(5+1)=F(5)-2. This means that F(6)=F(5)-2, F(5)=F(4)-2, F(4)=F(3)-2, F(3)=F(2)-2, and F(2)=F(1)-2. Because we know F(1)=18, F(2)=16, F(3)=14, F(4)=12, and F(5)=10.
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Answer: The correct answer is Choice C.
Step-by-step explanation: The cost of the ride is .50 per mile, plus $3.00 for each ride. In order to calculate it, the correct formula is going to multiply the number of miles, represented by x, by .50, and then add $3 for the ride.
Choice C is doing just that. $.50x + $3
The formula for the circumference of a cirlce is 2 x pi x radius
So to find the length of the outer edge between 3 and 6 = 2 x Pi x 6 = 37.7. And then divide 37.7 by 4 which equals to 9.425 inches
fifty five hundredths is equal to 0.55
