Answer: Option D
D. $108
Step-by-step explanation:
We must calculate the expected cost per patient to use treatment method B.
The expected cost for a discrete random variable x is:

Where
is the cost associated with the probability 
In this case, the random variable x is represented by the cost of each treatment.
For treatment B there is a possibility that antibiotic 2 works, in that case the cost x would be $ 100 and 
There is also the possibility that it does not work, in this case the cost x would be $180 and the probability 
The expected cost is:

Answer:
<h2>472.5 cubic feet.</h2>
Step-by-step explanation:
The dimensions of the tent are 9 by 15 at the base and 7 units of height. So, the voume is defined as

Replacing all given values, we have

Therefore, the right answer is the second choice.
Answer:
100
Step-by-step explanation:
Got it on Khan Academy, math geeks.
Congrats. Now you got a free cheater's answer in Quadratic Word Problems (vertex form). Your welcome, cause I got it wrong.
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You first add all the angles together.
25 + 65 + 90 = 180°
The total angle measurement of a triangle is 180°. Therefore, it is possible to only make one triangle.