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bonufazy [111]
3 years ago
9

2) The area of a rectangular pool is 1260 ft. Find the dimensions of the rectangle, if one

Mathematics
1 answer:
artcher [175]3 years ago
5 0
Two equations

W*L=1260

3W+48=L

Solve

L=1260/W

3W+48=1260/W

3W^2+48W=1260

3W^2+48W-1260=0

Divide by 3

W^2+16W-420=0

Factor

(W-14) (W+30)

W=14

L=90





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11
emmainna [20.7K]
I think it is B because 11 is just 11 so yeah
3 0
4 years ago
Debate the following statement: "Correlation means Causation." Determine whether this statement is true or false, and provide re
Pachacha [2.7K]

Answer:

Thats FALSE.

The concept CORRELATION not automatically means CAUSATION.

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:

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

Solution to the problem

Some useful concepts are:

Correlation is a statistical measure described with a number that describes the size and direction of a relationship between two or more variables. The correlation between variables, NOT mean that the change in one variable is the cause of the change in the values of the other variable.

Causation is a term refered to one event as the result of the occurrence of the other event for example, there is a causal relationship between event A and B like a cause and effect. One important thing to mention here is that the causation is not an easy concept to measure.

"The difference between the two types of relationships are easy to identify since one can be measured with a numerical value and the other no (Here is one example: smoking causes an increase in the risk of developing lung cancer), or it can correlate with another ( smoking is correlated with alcoholism, but it does not cause alcoholism)".

So is clear that the concept CORRELATION not automatically means CAUSATION.

6 0
3 years ago
Simplify:<br>2a/3x+3a/2x+5a/6x​
xz_007 [3.2K]

Answer:

the answer is 10a+11x

Step-by-step explanation:

2a+3a+5a=10a

3x+2x+6x=11x

5 0
3 years ago
Ava opened a account first oak with 5000$. Zoe started an account with 4000$ l. No additional deposit or withdrawal from this ac
DerKrebs [107]

Answer:

This isnt much of an answer just something to help-

Try doing A(1 + B)^I

4 0
2 years ago
out of 50 students, 15 are taking English and 30 are taking chemistry. of those students taking English and Chemistry, 6 are in
MAXImum [283]
15-6= 9
30-6= 24
24+9= 33
50-33= 27
27 students are taking neither class I think
8 0
3 years ago
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