You have to show the number that is in expanded form in order for us to be able to solve the question.
Answer: 
Step-by-step explanation:
To solve the exercise you must solve for b from the formula for the hypotenuse, as you can see below:
- Square both sides of the equation as following:
- Now you must subtract a² from each side of the equation, then you obtain:
- Apply square root to both sides:
Then:
ANSWER
547 contestants are no longer in the competition.
EXPLANATION
This is a subtraction problem.
The number of contestants who started the competition is 794.
The number of contestants who are currently in the competition is 247.
To find the number of contestants who are no longer in the competition, we need to subtract 247 from 794.
Number of contestants who are no longer in the competition is
794-247=547
