Answer:
Step-by-step explanation:
All you have to do is add all of the numbers together. Then, divide it by the amount of numbers there.
So, 27+20+15+31+13+22+31+5=164
And they gave us 8 numbers.
So, divide 164 by 8
Answer: 20.5
Answer:
she is not fully correct root nine is three but root eight can also be simplified to 2root 2 so the answer is six root two
g = (1+2a)/a
multiply each side by a
ga = 1+2a
subtract 2a from each side
ga -2a =1
factor out a
a(g-2) =1
divide by g-2
a= 1/(g-2)