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zloy xaker [14]
2 years ago
9

The sum of 21 and n is equal to 43.23 please help me!!! I’ll give out 30 points!!!

Mathematics
2 answers:
Assoli18 [71]2 years ago
8 0
Equation: 21+n=43.23

Process to find n

21+n=43.23
Subtract 21 from both sides
n=22.23
12345 [234]2 years ago
3 0

Answer:

n=22.23

Step-by-step explanation:

21+n=43.23

-21 to both sides

0+n=22.23

n=22.23

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Which equation represents the line that passes through the points (-3, 7) and (9,-1)? oy--3x+5 o y=-x-7 o y=zx-7 oy - 12 2x+5​
olchik [2.2K]

Answer:

The answer is

<h2>y =  -  \frac{2}{3} x + 5</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation we must first find the slope of the line.

So the slope of the line using points (-3, 7) and (9,-1) is

<h3>m =  \frac{ - 1 - 7}{9 + 3}  =  -  \frac{8}{12}  =  -  \frac{2}{3}</h3>

Now we use the formula

<h3>y - y1 = m(x - x1)</h3>

where

m is the slope

( x1 , y1) is any of the points given

So the equation of the line using point

( - 3 , 7) and slope - 2/3 is

<h3>y - 7 =  -  \frac{2}{3} (x + 3) \\ y - 7 =  -  \frac{2}{3} x - 2 \\ y =  -  \frac{2}{3} x - 2 + 7</h3>

We have the final answer as

<h3>y =  -  \frac{2}{3} x + 5</h3>

Hope this helps you

5 0
3 years ago
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The point nearest to the origin on a line is at (4, -4). Find the standard form of the equation of the line.
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Just did a specific one of these; let's do the general case.


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That's standard form; let's plug in the numbers:


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Step-by-step explanation:

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