Answer:
x=1.3288 or -1.1288
Step-by-step explanation:
Given 
Subtract 4x from both sides

Since we can factor out 2 from whole equation, let's factor out 2.

Divide with 2 on both sides

We got the quadratic equation, we can solve for x using quadratic formula.





Answer:6 +10b
Step-by-step explanation:
Like terms 9-1-2 =6 and 3b + 7b = 10b
Answer:

And from the problem we know the following:
represent the condition if the route is approved
represent the condition if the route is NOT approved
Then replacing in the formula for the expected value we got:

So then the expected number of new employees to be hired by the airline based on the conditions given is between 395 and 396.
Step-by-step explanation:
For this cae we can define the random variable X who represent the number of new employees to be hired by the airline and we can find the expected value with the following general formula:

And from the problem we know the following:
represent the condition if the route is approved
represent the condition if the route is NOT approved
Then replacing in the formula for the expected value we got:

So then the expected number of new employees to be hired by the airline based on the conditions given is between 395 and 396.
Answer:
true
Step-by-step explanation:
Say that you buy 30 apples for $20, you take how many apples there are and divide it by how much they cost, they cost $1.5 per apples (looks like this, Unit/Rate)