Answer:
no correlation
Step-by-step explanation:
because the teeth brushing had nothing to do with their grade, it would be no correlation.
C=2pi2
c=12.56
so the last one
Answer: The answer is 144 grams of zinc
Step-by-step explanation:
When the pentagon is drawn to scale then its value of x will be x=3.3 cm
<h3>What is the pentagon?</h3>
The pentagon is defined as the shape having five sides connected together.
Now it is given in the question that
For small pentagone
Bottom =x
left =7 cm
For larger pentagone
Bottom=7cm
left=15cm
Now since the pentagon is actually dilated from its size to the new bigger size. It means that the equivalent ratio of both the pentagons will be equal.
For smaller pentagon

For bigger pentagon

Since both, the ratio is the same


Thus the pentagon is drawn to scale than its value of x will be x=3.3 cm
To know more about Pentagone follow
brainly.com/question/4804571