Answer:
Internal angle = 
Number of sides = 18
Step-by-step explanation:
Given that:
We have a regular polygon with number of sides unknown.
Measure of an exterior angle of the polygon = 
To find:
Measure of an interior angle and the number of sides of the polygon?
Solution:
Let us have a look at the relation of sum of external angles.
Sum of one internal angle and its corresponding external angle = 
Internal angle + external angle = 
Internal angle =
-
= 
Sum of all the external of a regular polygon = 
All the external angles will be equal because it is a regular polygon.
Let the number of sides = 
Therefore,

Therefore, the answers are:
Internal angle = 
Number of sides = 18
Answer: is one orange x tile five blue types x-5
Step-by-step explanation:
Inverse relationships are of the form xy=k or if you prefer y=k/x so to find the constant we can say:
18(0.25)=k=4.5
So you could say: IR=4.5 or I=4.5/R
Answer:
C. Correct, because for the work to be carried out in 5 days, 40 workers are required.
Step-by-step explanation:
The job requires 10 people to work for 20 days. That's 200 worker-days.
In other words,
days × workers = 200 or
workers = 200/days
To get the work done in five days,
workers = 200/5 = 40.
You must hire 40 workers.
B. and D. are wrong. To get the job done in seven days. you must hire 200/7 = 29 workers.
Answer:
D)
Step-by-step explanation:
Translate each point of the graph of h(x) 3 units left.