4. There are 25 students in a college math class.
1 answer:
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Answer:
The length of the side of an equilateral traingle inches
Step-by-step explanation:
Given that the area of an equilateral triangle is given by
It can be written as
Square inches (1)
To find the length of the side s os an equilateral triangle
Given that area of an equilateral triangle is square inches
It can be written as
square inches
It can be written as
square inches (2)
Now comparing equations (1) and (2) we get
Dividing by on both sides we get
Therefore inches
Therefore the length of the side of an equilateral traingle inches
For this case we have a quadratic equation, , of the form
Where:
We can solve the equation by factoring, that is, we bias two numbers that multiplied give as a result -60 and added as a result 28.
These numbers are:
Then, the factorization is given by:
The roots are:
Answer: