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xenn [34]
3 years ago
10

I need help with number20.

Mathematics
2 answers:
labwork [276]3 years ago
6 0
So if there’s 64 tables and you want them to be arranged in a square then 8 tables would be in each row! I got that because the square root of 64 is 8. Another way to think of it is 8^2 = 64
natulia [17]3 years ago
3 0
The manager arranges the tables in rows of 8. because a a square on the multiplication chart is always going to be the square root and the square root of 64 is 8.
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Johnni guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that sh
Ne4ueva [31]

Answer: The answer is B. 0.208.

Step-by-step explanation: Just took the test on e2020

3 0
3 years ago
Select the correct answer.
ad-work [718]

Answer:

A' (-1, 2)

Step-by-step explanation:

(x, y) -> (-y, x)

A' (-1, 2)

B' (1, -2)

C' (2, -2)

D' (0, -2)

3 0
3 years ago
Which of the choices below is not a possible correlation coefficient?
fiasKO [112]

Answer:

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

Step-by-step explanation:

The correlation coefficient is a measure of dispersion and is a value between -1 and 1, and is defined as:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

8 0
3 years ago
Two adjacent angles form a complementary relationship. One angle is twelve more than twice the other angle. Draw a picture to re
Anon25 [30]

Answer:

The angles are 26 and 64

Step-by-step explanation:

When two angles are complementary, what this means is that the add up to 90 degrees

Now, let’s say one of the angles is x, the other angle is 12 more than twice it; mathematically that would be 2x + 12

Since they add up to be 90, we have

x + 2x + 12 = 90

3x + 12 = 90

3x = 90-12

3x = 78

x = 78/3

x = 26

The other angle is 2x + 12 = 2(26) + 12 = 52 + 12 = 64

7 0
3 years ago
What is 4z(6x+7y)?<br><br> Please help!
marshall27 [118]

Answer:

24xz + 28yz

Step-by-step explanation:

4z(6x + 7y) ← multiply each term in the parenthesis by 4z

= 24xz + 28yz

4 0
3 years ago
Read 2 more answers
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