At the end of the football season, a team analyses the number of goals they concealed each game. the table shows their information. a) find the median number of goals concealed

b) work out the mean number of goals concealed

concealed goals frequency

0 2

1 8

2 4

3 10

4 6

answer: (x)+4-5=-3

step-by-step explanation:

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400