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2 years ago

Please help me its really important

Mathematics

1 answer:

Serga [27]2 years ago

5 0

Answer:

I think that the answer isssss B

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FIND THE EQUATION OF THE LINE . USE EXACT NUMBERS

Alik [6]

Answer:

y = -3x + 7

Step-by-step explanation:

Use points on the graph:

(0, 7) and (2, 1)

Find the slope:

m = (1 - 7)/ 2 = -3

The y-intercept is known b = 7, so the equation is:

y = mx + b
y = -3x + 7

3 0

2 years ago

If m + n = 7 and 2n - 3m = 6, what is the value of 3n - 2m ?

S_A_V [24]

Since m + n = 7 we know m = 7-n. So now we have 2n - 3(7-n) = 6. From this we get n = -3. So now we know m - 3 = 7 so m = 10. So now we have 3(-3) + 2(10) = ? and this comes out as 11

8 0

2 years ago

Read 2 more answers

4x + x - 3-9 + 4x = 6 ??

Nookie1986 [14]

Answer:

$x=2$

Step-by-step explanation:

-------------------------

Given:

$4x+x-3-9+4x=6$

---------->>>>

Combine like terms.

$9x-12=6$

---------->>>>

Add 12 to both sides.

$9x=18$

---------->>>>

Divide both sides by 9.

$x=2$

-------------------------

Hope this is helpful.

8 0

2 years ago

line segment with one endpoint at (2,5) is divided in the ratio 4:5 by the point (10,1). which coordinates could represent the o

rodikova [14]

Answer:

(20,-4)

Step-by-step explanation:

We are given;

One end point as (2,5)

Point of division as (10,1)

The ratio of division as 4:5

We are required to calculate the other endpoint.

Assuming the other endpoint is (x,y)

Using the ratio theorem

If the unknown endpoint is the last point on the line segment;

Then;

$\left[\begin{array}{ccc}10\\1\end{array}\right]$ = $\frac{4}{5} \left[\begin{array}{ccc}x\\y\end{array}\right]$ + $\frac{5}{9}\left[\begin{array}{ccc}2\\5\end{array}\right]$