Identity For eac ariment, determine whether events A and B are independent or d
Experiment
A box contains tiles labeled A through Z. A tile is randomly chosen from Eve
the box and set aside. Then andther random selection is made from the sele
remaining tiles.

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

it is a secret for it not to be compromised sorry

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

can you post the graph?