Answer:
The number of ways are 40320.
Step-by-step explanation:
Consider the provided information.
Ms. Smith keeps eight different cookbooks on a shelf in one of her kitchen cabinets.
We need to determine the number of different ways to put eight cookbooks on the shelf.
We need to select 8 cookbooks taking 8 at a time.
So use the permutation formula:
Substitute n=8 and simplify.

Hence, the number of ways are 40320.
Easy divide 7 by 2 and how many teams are there? (In total)
Answer:
The equation is 
Step-by-step explanation:
Given the following equation in the plane :

The set of points
that satisfy the equation graph a circle in the plane.The circle is centered at
and the radius of the circle is R.
For example, the set of points that satisfy : 
graph a circle of radius
centered at the point 
The first step to solve this exercise is to find the center of the circle.
The rectangle has vertices
and
so they will form a rectangle with width 10 units and height 40 units.
Given this situation, the center of the rectangle is at
(Half of the width in the first coordinate and half of the height in the second one)
The equation of the flower garden will be

The final step is to find the value of R.
Given that the rectangular backyard width is 200 feet and this is represented with a rectangle in the blueprint with width 10 units
⇒ 
The radius of 60 feet is represented with 3 units in the blueprint.
Now we replace
in the equation :
⇒

And that is the equation of the circle.