Answer:
10
Step-by-step explanation:
Answer:
Step-by-step explanation:
We have two random variables X and Y. 
and given that X=x, Y has uniform distribution (0,x)
From the definition of the uniform distribution we have the densities for each random variable given by:
And on this case we can find the joint density with the following formula:
And multiplying the densities we got this:
Now with the joint density we can find the expected value E(Y|x) with the following formula:
And replacing we got:
let's label each pump A, B, and C, just for convenience. A fills the tank by 1/50 every minute, B fills the tank by 1/60 every minute, and C drains it by 1/75 every minute. Now we can put them all into one function: t(1/50 + 1/60 - 1/75) = 1, where t = our time in minutes and 1 = the tank being full.
next, we solve for t: t = 300/7 minutes, or approximately 42.86 minutes.
The answer is D: when the ticket price is $15, a total of 120 people visited the art show
<em>Hello there!</em>
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In this problem, it says the more it advertises, the more it sells. In this case then, <em>C. Graph Z</em>, would be your answer since it shows the increase of both
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<em>I hope I helped</em>
<em>Brainlyiest?</em>
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