Answer:
i think it is 31
Step-by-step explanation:
Factor out of .
I believe that's the correct answer.
We will have to use the formula for the area of a trapezoid on this problem, which is ( and are the bases of the trapezoid and is the height):
All we need to do is substitute the information we are given into our formula:
Now, let's just simplify the equation:
The missing base has a length of 13 units.
By adding all the numbers and dividing by 7 ( the amount of numbers) you know that the answer will be about 166.3