Answer:
$11
Step-by-step explanation:

We want to calculate the expected gain or loss of Stock ABC with the probabilities above.
Note that loss is written in negative.

Stock ABC has an expected gain of $11.
The reason they have to be simplified is that you cannot add radical unless the number under the radical is the same on all of them.
For example:
If you add √8 + √32 without simplifying, the best you could do is an estimate. But if you're required to put your answer in standard radical form this would be an issue.
So, you would have to simplify to combine:
√4√2 + √16√2
2√2 + 4√2
6√2
Hope this helped!
1/3 * x square = 16
x square =16*3
x square =48
therefore x=4 under root 3
Answer:
2/3
Step-by-step explanation:
The √4 is 2
and the √9 is 3
therefore the final answer wil be 2/3
Answer:
27
Step-by-step explanation: