12 because if u multiply 3*4 it is 12 and 4*3 is 12 so they both have 12 in common I hope this helps and have a nice day =)
Answer:
Step-by-step explanation:
<u><em>Decompose each number:</em></u>
<em><u /></em>
<em><u>Correct the error. Write the correct decomposition:</u></em>
<em><u /></em>
<em><u /></em>
Answer:
y =
x - 9
Step-by-step explanation:
C
-x=-y-10 = x=y+10
x is 10 bigger than y
x+y=12
C
To find the area of a trapezoid, we use the following formula:

In this formula a represents the area and b1 and b2 each represent a base of the trapezoid.
So, we have got the following information



Filling in the formula gives us:



Finally we have to divide both sides by 15.

Therefore, the height of the trapezoid is 10 meters.