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Aleonysh [2.5K]
3 years ago
8

Combine and simplify the radicals below √8 * √20

Mathematics
1 answer:
professor190 [17]3 years ago
7 0
Here is my approach to this problem. :)

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88.3 is what % of 21?
m_a_m_a [10]
88.3 is what % of 21
21 × a percent = 88.3
Divide 21 on either sides to find the percentage.
\frac{21*percentage}{21} = \frac{88.3}{21}
% = 4.204
88.3 is 4.205% of 21


8 0
3 years ago
How do you calculate the residuals of a scatter plot?
Aloiza [94]
Hello

A residual<span> is the difference between the observed y-value (from </span>scatter plot<span>) and the predicted y-value (from regression </span>equation<span> line). It is the vertical distance from the actual </span>plotted<span> point to the point on the regression line.
</span>
Have a nice day kid!
6 0
3 years ago
Identify which type of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine customer opini
azamat

Answer:

This is cluster sampling.

Step-by-step explanation:

American Airlines randomly selects 110 flights during a certain week and surveys all passengers on the flights.

This is a type of cluster sampling.

This type of sampling is done by dividing the population into different groups and a simple random sample of clusters is selected from the population.

8 0
3 years ago
If you run 10 feet in 3 seconds how long does it take you to run a mile?
mel-nik [20]
It would take you 15 minutes
3 0
3 years ago
Linda knitted 1/6 of a sweater on Friday and 2/9 of the sweater on Saturday. On Sunday she knitted 1/2 of the remaining sweater.
sladkih [1.3K]
This is pretty simple. All you have to do is make the first and second fraction share a denominator by multiplying them by each other.

6 <span>• 9 = 54

Then multiply each numerator by the opposing denominator.

1 </span><span>• 9 = 9

2 </span><span>• 6 = 12

Here are the new fractions:

9/54

12/54

Now add the 9 and 12 together.

9 + 12 = 21

The complete fraction:

21/54

Subtract 21 from 54 so you can get the remainder of the sweater.

54 - 21 = 33

This is the remainder fraction:

33/54

Can you simplify this? Yes, of course! They can both be divided by 3!

11/18

That is the remainder of the sweater. But you still have to divide it in half! After all, Linda only knitted half of the remaining sweater. Dividing it in half can be done just by multiplying the denominator by 2.

11/36

That should be your answer! Apologies if I got something wrong.</span>
7 0
3 years ago
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