1/5 of 30 is 6.
There are 6 red circles
Step-by-step explanation:
this problem seeks to test our knowledge on word problems and algebra
<u>Solution</u>
let the base be x, and
the height h = 2x+4
We know that area of a triangle is given as
![A= \frac{1}{2} b*h](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7B1%7D%7B2%7D%20b%2Ah)
substituting our given values we have
![168= \frac{1}{2} x*(2x+4)\\\\168= \frac{2x^2+4x}{2} \\\\168= x^2+2x\\\\](https://tex.z-dn.net/?f=168%3D%20%5Cfrac%7B1%7D%7B2%7D%20x%2A%282x%2B4%29%5C%5C%5C%5C168%3D%20%5Cfrac%7B2x%5E2%2B4x%7D%7B2%7D%20%5C%5C%5C%5C168%3D%20x%5E2%2B2x%5C%5C%5C%5C)
re-arranging we have
![x^2+2x-168=0\\\\](https://tex.z-dn.net/?f=x%5E2%2B2x-168%3D0%5C%5C%5C%5C)
we can now find two factors that will add up to give 2 and multiply to give -168
they are 14 and -12
The possible base of the triangle is 14 in
and the height is
![h= 2x+4\\\\h=2(14)+4\\\\h= 28+4\\\\\h= 32 in](https://tex.z-dn.net/?f=h%3D%202x%2B4%5C%5C%5C%5Ch%3D2%2814%29%2B4%5C%5C%5C%5Ch%3D%2028%2B4%5C%5C%5C%5C%5Ch%3D%2032%20in)
Answer:$2.92
Step-by-step explanation:
$6350.00 x .046=$2.92
I think you should try your best and just never get but just always keep trying because if you give up that means you're not track so just keep trying and get it right.
Answer:
x+3
Step-by-step explanation
Combine like terms (5x-4x) = 1x
x+3