Answer:
549.78
Step-by-step explanation:
Given the formula \pi r^{2} =v
Replace the values, so it will be \pi 25(7)=v
v=549.78
(length of the foot) = 0.860 • (length of the forearm) + 3.302
If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.
Using this equation, how long would the foot of a person be if his forearm was 17 inches long?
B. What is the rate of change of the equation from Part A?
Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?
C. Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
Step-by-step explanation:
Part A:
y=0.860x + 3.302
y= 0.860(17) + 3.302
y= 14.62 + 3.302
y= 17.922
Part B:
step 1
y=0.860x + 3.302
y= 0.860(17) + 3.302
y= 14.62 + 3.302
y= 17.922
step 2
y=0.860x + 3.302
y= 0.860(18) + 3.302
y= 15.48 + 3.302
y= 18.782
step 3
18.782-17.922=.86
So, the rate of change is .86
Hope it helps!!