The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
<h3>What echo number is a perfect square</h3>
An <em>echo</em> number has a <em>perfect</em> square if its square root is also a <em>natural</em> number. After some iterations we found that <em>echo</em> number 20222022202220222022 is a <em>perfect</em> square:
The <em>echo</em> number 20222022202220222022 is the <em>perfect</em> square of 4496890281.
To learn more on natural numbers, we kindly invite to check this verified question: brainly.com/question/17429689
Answer:
7 = 24
Step-by-step explanation:
Answer: 22 feet.
Step-by-step explanation:
Note that there are two right triangles in the figure attached: ACD and BCD. Where "h" is the height of the chimeney from John's eye level to the top of the chimney.
You need to use the trigonometric identity for this exercise.
Solve for h:
Substitute and solve for h:
Rounded to the nearest foot:
Answer:
4.2
Step-by-step explanation:
T = K/N
K= TN
= 3×7
K= 21
Therefore the time required for 5 employees can be calculated as follows
T= 21/5
= 4.2
Answer:
2.
Step-by-step explanation:
It's a random sample, so anyone could be sampled. Everyone has the same rate of being sampled, therefore the results are fair and equal.