A store manager records the number of customers at the store each week for several years the data are approximately normally distributed with a mean of 1245 and a standard deviation of 35 the manager wants to predict future customer totals using these data is what percentage of weeks will have between 1280 and 1315 customers

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

im super bad at school but u for some reason need to have points to ask questions and you get points by answering so thats all im doing sorry for t r o l l i n g  

∵⊃↔↓㏒㏒

: ⇔

73

step-by-step explanation:

7×3²+10

=7×9+10

=63+10

=73