Trapezoid 15

Area of trapezoid is 266. What value is x if bases b1 is 2x-3, b2 is 2x+1 and height h is x+4

Correct answer:

x =  10

Step-by-step explanation:

A=266 A=(b1+b2)h/2 A=((2x3)+(2x+1))(x+4)/2 (2x3+2x+1)(x+4)/2=266  2x2+7x270=0  a=2;b=7;c=270 D=b24ac=7242(270)=2209 D>0  x1,2=2ab±D=47±2209 x1,2=47±47 x1,2=1.75±11.75 x1=10 x2=13.5   Factored form of the equation:  2(x10)(x+13.5)=0 x>0 x=x1=10

Our quadratic equation calculator calculates it.




Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Are you looking for help with calculating roots of a quadratic equation?

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: