Answer:
9 cars
Step-by-step explanation:
A car holds 4 people
For 34 people :
34 ÷ 4 = 8 1/2
We canmot put 8 1/2 cars so it's 9. There will just be 2 extra seats.
Example 2x + y =3
-2x -2x
——————————————
Y = 3 - 2x or y = -2x - 3
So x is equal to 40 so the length of M and N is 140 and no is 70 with the total length being 210 hope I helped could I get a brainliest!!
Answer:
-764.28
Step-by-step explanation:
Given the joint cumulative distribution of X and Y as

#First find
and probability distribution function ,
:

#Have determined the probability distribution unction ,
, we calculate the Expectation of the random variable X:

#We then calculate
:

Hence, the Var(X) is 764.28