Answer:
72º
Step-by-step explanation:
In order to calculate this you have to remember that the center angle of any polygon measures 360º, so what we do is just divide those 360 by the number of angles that you will find in the polygon, the number of angles equals the number of sides, so the pentagon has 5 sides, it will also have 5 angles. So we just divide the 360/5=72
So the smallest angle of rotational symmetry that maps a regular pentagon onto itself will be 72º
Answer:
Yes, the distance from the origin to the point (8,√17) is 9 units.
Step-by-step explanation:
The equation of a circle centered at the origin with radius , r has equation:

Since the circle passes through (0,-9), the radius is 9 units because (0,-9) is 9 units from the origin.
We substitute the radius to get:


If (8,√17) lies on this circle, then it must satisfy this equation:

This is True.
This means the distance from (8,√17) is 9 units from the origin.
Answer:
15
Step-by-step explanation:
Set up an equation:
21.00
5.50 + 0.99x
Solve for x:
First subtract 5.50 from both sides:
15.50
0.99x
Divide both sides by 0.99:
15.6
x
Since you can't ride 0.6 of a ride the max number rides that Deja can ride is 15
A is the answer because to values that are the same are infinite solutions.
Answer:
a²+b²=c²
Step-by-step explanation: