Help 5.
The distances and times of practice runs for four students on a cross country toam aro shown in
the table below.
Practice Runs
Distance (miles)
Runner
Time (minutes)
Sean
3
21
Gwen
4
32
Marc
5
30
Emma
2
14
Which statements are correct?
Select all that apply.
Sean's average time per mile was 7 minutes.
Gwen's average time per mile was 8 minutes.
Marc's average time per mile was 7 minutes.
Emma's average time per mile was 6 minutes.
Marc had the fastest average time per mile.
Sean had the slowest average time per mile.

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

the answer is 489

step-by-step explanation: