Answer:
X=9
Step-by-step explanation:
2x-7=11
Add 7 each side
2x - 7 +7 =11 + 7
2x=18
Divide by 2 each side
2x/2=18/2
x=9
Answer Using the method of alligation. 40.0= 20/(10/20) qts of 50% solution to add to your 20 qts of 20% solution. 60.0= (20+40.0) qts of the final 40% solution.
Find the marginal density for
by integrating the joint PDF over all possible values of
:


Then the density of
conditioned on
is

for
and undefined elsewhere.
Thus

= = =
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No jjgjjrjejejjejw need 20 letters

You can simplify the equation:

To find the solution in a value of x you substitute the x by the given value:
x=-2

x=0

x=5