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2 years ago

What formula is f(x)=x+2x-3

Mathematics

1 answer:

n200080 [17]2 years ago

3 0

Simplifying the equation
f(x) = 3x - 3

Hope it helped!

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Math question 4! Thanks if you help

enot [183]

Answer:

pythagoras theorem

height ladder can reach on the wall = side a or b

13 feet = hyp

5 feet = side a or b (you choose which one it is)(but the equation still works ......................................the same)

13^2-5^2 = 144

√144 = 12

3 0

3 years ago

Please Help me! Choose an answer<br> Thanks

earnstyle [38]

Answer:

Step-by-step explanation:

The change rate is just to big to differ from 2-4 and M isnt the same rate as P in the problem, so the answer would be C. (hoped this helped :D

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3 years ago

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Which of the following are the correct properties of a slope? Check all that apply. A. A negative slope means that the line move

Svetllana [295]

Answer:A and D

Step-by-step explanation: I am smart trust me :)

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2 years ago

The mean and standard deviation of the number of practices are = 8 practices and sx = 4.47 practices. The mean and standard devi

ddd [48]

Least square regressions are used to find the equation of <em>best fit between two variables</em>.

The equation of the least-squares regression line is: $\mathbf{y = 9.414 - 0.213x}$

The given parameters are:

$\mathbf{\bar x = 8}$

$\mathbf{\sigma_x = 4.47}$

$\mathbf{\bar y = 7.71}$

$\mathbf{\sigma_y = 1.20}$

$\mathbf{r = -0.793}$

The equation of the least-squares regression line is represented as:

$\mathbf{y = a + bx}$

Where:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{a = \bar y - b\bar x}$

So, we have:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{b = -0.793 \times \frac{1.20}{4.47}}$

$\mathbf{b = -0.213}$

$\mathbf{a = \bar y - b\bar x}$

$\mathbf{a = 7.71 - (-0.213) \times 8}$

$\mathbf{a = 9.414}$

So, the equation is:

$\mathbf{y = a + bx}$

$\mathbf{y = 9.414 - 0.213x}$

Read more about equations of least squares regression at:

brainly.com/question/2141008

8 0

1 year ago

Question 1

Mariana [72]

Answer:

i actually dont know im sorry

5 0

3 years ago