the example of an open equation is :x+9=16
If a is the number of events, then a = 1. Plugging in 1 for a in the equation

, you get

.
Total cost is $9.
Answer:
Min
Step-by-step explanation:
To check if it has a max or min, you must reference the a value. The a value in this case is 2, and that is positive. Positive parabolas point up, so they can only have a minimum point.
It is more than just a quadrilateral. In fact it is going to be hard to pick.
These facts suit a square, a rectangle, a rhombus, and a parallelogram. And the above statement is true, but maybe a little harder to prove than the converse of the statement, which is the usual one you find.
The converse is "If you have a parallelagram, the diagonals bisect each other."
You might think a trapezoid deserves some mention. The diagonals of a trapezoid do not bisect each other.
Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.