The equivalent of 48ft is 4 yards.
Differentiating once, we have

Differentiating again,


as needed.
Answer:
No one will answer your question beacuse your in brainly.com go to brainly.ph many filipinos will answer your question
Step-by-step explanation:
Go to settings then if you saw the change brainly.com click it then find pilipinas
Answer:
The formula to calculate standard deviation from probability is \sqrt(n*p*(1-p)). n is the sample size, and 200 in this case (number of putts for practice). p is 80% or 0.8, the probability that he can make it. So the standard deviation is \sqrt(200*0.8*(1-0.8)=\sqrt(200*0.8*0.2)=\sqrt(16)=4.