The weights of ice cream cartons are normally distributed with a mean weight of 13 ounces and a standard deviation of .4 ounce. ​(a) What is the probability that a randomly selected carton has a weight greater than ​13.09 ounces?
​(b) A sample of 36 cartons is randomly selected. What is the probability that their mean weight is greater than 13.09 ​ounces?

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.