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White raven [17]
3 years ago
10

Write an equation that represents the line that passes through the points (– 2, – 3) and (−1, 2).

Mathematics
1 answer:
AURORKA [14]3 years ago
6 0

Answer: I think it’s y = mx+b?

Step-by-step explanation: well if you really need it-

Where:

m is the slope, and

b is the y-intercept

First, let's find what m is, the slope of the line...

The slope of a line is a measure of how fast the line "goes up" or "goes down". A large slope means the line goes up or down really fast (a very steep line). Small slopes means the line isn't very steep. A slope of zero means the line has no steepness at all; it is perfectly horizontal.

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What is the equation for this?
worty [1.4K]

The point-slope form:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have two points (-9, 7) and (9, 1). Substitute:

m=\dfrac{1-7}{9-(-9)}=\dfrac{-6}{18}=-\dfrac{1}{3}\\\\y-7=-\dfrac{1}{3}(x-(-9))\\\\\boxed{y-7=-\dfrac{1}{3}(x+9)}

5 0
3 years ago
2.85 rounded to the nearest hundredth <br> A. 2.861<br> B. 2.849<br> C. 2.842<br> D. 2.805
blagie [28]

Answer:

B) 2.849

Step-by-step explanation:

Given: 2.85 which is rounded to the nearest hundredth place.

To find the number, the thousandth place must be greater than or equal to 5.

Here 2.849 has the thousandth place greater than 5

When we round off 2.849 to the nearest hundredth place, we get

2.85

Therefore, answer is B) 2.849

Hope this will helpful.

Thank you.

5 0
4 years ago
Read 2 more answers
What is the slope-intercept form of the function that contains the points (5, 6 and (9, 14?the slope-intercept form of the funct
alina1380 [7]
Correct!

The slope is (14-6)/(9-5) = 8/4 = 2;


<span>the slope-intercept form of the function that contains the points (5, 6) and (9, 14) is y - 6 = 2( x - 5 );
Then, y - 6 =2x - 10;
y = 2x - 4 ;</span>
3 0
4 years ago
Csc x - sin x = cot x • cos x
bearhunter [10]
1) expand csc and cotx identity 
 
(1/sinx)-sinx = (cosx/sinx)*(cosx)

2) get common denominator on the left side

(1-sin^2x)/(sinx)= (cos^2x)/sinx

3) using cos^2x+sin^2x=1 you finished 
cos^2(x)/sinx= cos^2(x)/sinx

hope that helps<span />
3 0
3 years ago
Alona has some wood cutouts of two different shapes - square and triangle. Each square cutout is 6 mm thick and each triangular
kobusy [5.1K]

Answer:

18

Step-by-step explanation:

Volume is a product of cross-sectional area and height and relresented as V=Ah where V is volume, A is cross-sectional area and h is height.

For the square, since each has a thickness of 6mm then for 24 of them the height will be 24*6=144 mm

Since the volume and cross sectional area of the triangle should be the same, then the height should also be the same.

Since for the triangle each has a thickness of 8mm then the number requred to achieve a height of 144 mm will be 144/8=18 stacks

7 0
4 years ago
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