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3 years ago

The equation is solved. Describe the property used in each solution.

Mathematics

1 answer:

UNO [17]3 years ago

7 0

Answer:

Step-by-step explanation:

It’s multiplication and then division. Just did it on edge2020.

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Please help me it’s emergency please

PolarNik [594]

Answer:

-17x

Step-by-step explanation:

(2x^3 - x^2) - (3x^3 - 2x^2)

(8x - 2x) - (27x - 4x)

6x - 23x

-17x

(I haven't seen many questions like this before, but I think that this may be the answer.)

4 0

3 years ago

Read 2 more answers

there are 24 students in a class.8 of the students are boys.write the amount of boys in the class as a fraction in its simplest

Shkiper50 [21]

Answer:

8/24 which is 1/3

Hope that helps:) Brainliest?? Feel free to ask me more questions

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Please help !!

olga2289 [7]

If you have learned how to find the line of best fit manually, then you can do it that way. Perhaps you may want to just find a line that can connect at least two of the points and I believe that that line will be able to represent the other points because, in general, the points are pretty close to one another.

If you don't want to do it manually and have a graphing calculator (which I recommend) then you can use that to find the line of best fit (and if you want then you can see how precise your points are with your r^2 value). Or there is a website (http://illuminations.nctm.org/Activity.aspx?id=4186), which you can use to help you to find the equation of that particular line.

Once you have that done, then you can substitute 2009 for the x value in the equation and then see what y value the equation produces. That will then be your answer :)

4 0

3 years ago

What is the equation of the line that passes through (5, 3) and (4, 5)

lara31 [8.8K]

Answer:

y = - 2x + 13

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (5, 3) and (x₂, y₂ ) = (4, 5)

m = $\frac{5-3}{4-5}$ = $\frac{2}{-1}$ = - 2, thus

y = - 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (4, 5), then

5 = - 8 + c ⇒ c = 5 + 8 = 13

y = - 2x + 13 ← equation of line

7 0

3 years ago

Solve the following system

scZoUnD [109]

Answer:

{x = -4 , y = 2 , z = 1

Step-by-step explanation:

Solve the following system:

{-2 x + y + 2 z = 12 | (equation 1)

2 x - 4 y + z = -15 | (equation 2)

y + 4 z = 6 | (equation 3)

Add equation 1 to equation 2: