The ages of members of a bowling league are normally distributed with a mean of 43 years and a
standard deviation of 4 years.
There are 200 members in the league.
About how many members are expected to be between 35 years old and 51 years old?

136
160
183
190

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.