SOLUTION: Find the area, A(x), of a triangle with height 6x (inches) and base 9x-1 (inches). Find A(50).
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Question 235084: Find the area, A(x), of a triangle with height 6x (inches) and base 9x-1 (inches). Find A(50).
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The area of a triangle is given by:
where
is the measure of the base and 
is the measure of the height
So, just replace the variables for base and height with your expressions:
\ =\ \frac{6x(9x\ -\ 1)}{2}\ =\ \frac{54x^2\ -\ 6x}{2}\ =\ 27x^2\ -\ 3x)
And
\ =\ 27(50)^2\ -\ 3(50))
You can do your own arithmetic.
John
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