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Ivan
3 years ago
10

Subtract. Write your answer in simplest form. 3 1/8 - 7/12 2 2 3 3

Mathematics
1 answer:
Agata [3.3K]3 years ago
8 0
2 13/24
i hope this helped
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) dy 2x<br> ------ = ---------------<br> dx yx2 + y
larisa86 [58]

Step-by-step explanation:

\dfrac{dy}{dx} = \dfrac{2x}{y(x^2 + 1)}

Rearranging the terms, we get

ydy = \dfrac{2xdx}{x^2 + 1}

We then integrate the expression above to get

\displaystyle \int ydy = \int \dfrac{2xdx}{x^2 + 1}

\displaystyle \frac{1}{2}y^2 = \ln |x^2 +1| + k

or

y = \sqrt{2\ln |x^2 + 1|} + k

where I is the constant of integration.

6 0
2 years ago
Look at the pic to awnser the question plz
grandymaker [24]
Answer:

The correct answer is 6.8.


Explanation:

63.92 ÷ 92 ≈ 6.8


Hope this helps :)



4 0
3 years ago
Two math questions plz
lord [1]

we know that

<u>The correlation coefficient</u> is a measure of linear association between two variables. Values of the correlation coefficient are always between −1 and +1.

Using a mathematical tool-------> Excel software

Find the correlation coefficient

see the attached table N 1 and N 2

the answer is

Part 1) The correlation coefficient of the data is 0.02

Part 2) The correlation coefficient of the data is 0.98

3 0
2 years ago
In a survey in 2010, the population of two plant species were found to be growing exponentially. Their growth is given by these
Lunna [17]

If we want to find when the population of species A will be equal to the population of species B, we need to see when the two equations for the population of each species are equal, ie. equate them and solve for t. Thus:

2000e^(0.05t) = 5000e^(0.02t)

(2/5)e^(0.05t) = e^(0.02t) (Divide each side by 5000)

2/5 = e^(0.02t) / e^(0.05t) (Divide each side by e^(0.05t))

2/5 = e^(-0.03t) (use: e^a / e^b = e^(a - b))

ln(2/5) = -0.03t (use: if b = a^c, then loga(b) = c )

t = ln(2/5) / -0.03 (Divide each side by -0.03)

= 30.54 (to two decimal places)

Therefor, the population of species A will be equal to the population of species B after 30.54 years.

I wasn't entirely sure about the rounding requirements so I've left it rounded to two decimal places.

6 0
3 years ago
The relationship between two variables is positive when​ ________
Natali [406]

Answer:

The relationship between two variables is positive when​ _increase in one causes the increase in the other._______

Step-by-step explanation:

in statistics two variables may be associated or not associated.  Normally we define variables as x and y.

If change of x does not affect value of y, then we can say there is no relationship between x and y.

Examples are a person Intelligence quotient and height, a vehicle's weight and its speed, etc.

Sometimes one variable affects another.

Examples are no of hours studied and scores obtained.

Exercises done and health condition etc.

If increase of x causes increase of y then the relationship is positive.

Instead if increase of one variable causes decrease of other variable then the relationship is negative

So

The relationship between two variables is positive when​ _increase in one causes the increase in the other._______

5 0
3 years ago
Read 2 more answers
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