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.
Answer:

Step-by-step explanation:
we have that


------> by supplementary angles
Substitute the values and solve for x




Find the value of angle R
Find the value of angle Q

Answer: 150 minutes
Step-by-step explanation:
1.5 pounds in 45 min
5 pounds in X times
Using proportionality:

Answer:
g(t) = 2t+3
Step-by-step explanation:
You want a definition of g(t) so you can write the equation ...
r = g(t) . . . . . . radius is a function of time
We are told the radius at t=0 is 3, so the third choice is the obvious one:
g(t) = 2t +3 . . . . . radius t seconds after the radius began increasing