If 
is the inverse of 
, then
which means
Solve for :
Answer:
A
Step-by-step explanation:
Answer:
Step-by-step explanation:
When you find mean, you must add all the numbers together then divide by the amount of numbers.
There are 10 numbers.
To find median, you have to either find the middle number or find the two numbers that makes it equal. Since this range set is even, we use the second option.
Divide by 2
In a parallelogram, opposite angles are congruent. However, the same thing cannot be said for the other.
You can label one pair of opposite angles with x and the other 9x.
You also know that each quadrilateral has interior angles that add up to 360 so you can create the equation of
9x+9x+x+x=360
which can be simplified into
20x=360
x=18
Now, you know the angle measures of one pair of opposite angles. to find the other you plug in 18 to our other equation and multiply 9 to get 162.
The angles of the parallelogram is 18,18, 162 and 162.
Note: you can check if this is right if all the angles add up to 360.
