The measure of the median of a trapezoid is one-half the sum of the measures of the bases.
So,
(Substitute )
(Combine like terms)
(Distributive property)
(Simplify)
(Add 1 to each side)
(Multiply 2 to each side)
(Divide each side by 7)
The value of x is 4.
"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett |
"Your site is amazing! It helped me get through Algebra." Charles |
"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease |