Answer:
so option 1 is correct
Step-by-step explanation:
![(14^0) ^-2](https://tex.z-dn.net/?f=%2814%5E0%29%20%5E-2)
power 0 * -2 = 0
if power is 0 then it equals to 1 so
= 1
20 sixth graders / 6 sixth graders / 216 students
The number of cruise passengers must there have been in 2017 is 26.7 million.
<h3>What is percentage?</h3>
The term "percentage" comes from the Latin phrase "per centum," meaning "by the hundred." Percentages represent fractions with a denominator of 100. In other terms, it is the relationship between portion and whole in which the value of the whole is always assumed to be 100.
Now according to the question;
Let x represent the total number for cruise passengers during 2017.
In 2018, a 6.7% rise in x results in 28.5 million cruise passengers.
So, 106.7 % of x = 28.5
![\begin{aligned}&\frac{106.7}{100} * x=28.5 \\&\frac{106.7 x}{100}=28.5\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%26%5Cfrac%7B106.7%7D%7B100%7D%20%2A%20x%3D28.5%20%5C%5C%26%5Cfrac%7B106.7%20x%7D%7B100%7D%3D28.5%5Cend%7Baligned%7D)
Multiplying both sides by 100;
![\begin{aligned}&\frac{106.7 x}{100} * 100=28.5 * 100 \\&106.7 x=2850\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%26%5Cfrac%7B106.7%20x%7D%7B100%7D%20%2A%20100%3D28.5%20%2A%20100%20%5C%5C%26106.7%20x%3D2850%5Cend%7Baligned%7D)
Dividing both sides by 106.7;
![\frac{106.7 x}{106.7}=\frac{2850}{106.7}](https://tex.z-dn.net/?f=%5Cfrac%7B106.7%20x%7D%7B106.7%7D%3D%5Cfrac%7B2850%7D%7B106.7%7D)
x = 26.7
Therefore, the number of cruise passengers in 2017 must have ranged from 26.7 million.
To know more about the percentage, here
brainly.com/question/24304697
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The formula for S.A. of a cylinder: S.A. = 2πr² + 2πrh (given).
r is radius, which is half the diameter. The diameter is 6 in, thus the radius is 3 in. h is height; the height of this cylinder is 8 in. Let's plug in our numbers and solve.
S.A. = 2π3² + 2π(3)(8)
S.A. = 2π9 + 2π24
S.A. = 18π + 48π
S.A. = 66π
Since the question says not to round, we must leave the answer in terms of pi.
Answer:
S.A. = 66π