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Andrew [12]
3 years ago
11

I need all but if someone could just do the first, it would help a lot

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0

So, the equation I got was y = -7x -15.

Firstm you gotta find the slope using the slope formula, m = (y2-y1) / (x2-x1) (plug in the two initial points you were given, (7,-2) and (8,5). After you get the slope, which I got as -7, plug that into the y=mx+b formula with your last point (-3,6)
So, 6= -7(-3) + b //// -7 = m, -3 = x, 6 = y. after you solve the equation you should get -15. plug that into the y=mx+b formula andyou have your final equation,
y = -7x -15. to check if all of the point are on this equation, I'd recommend plugging the equation into the demos graphing calculator, it really helps. Hopefully this helped you!

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ASAP! Students just finished taking test and these are the scores: 75, 80, 62, 98, 90, 86, 55, 86, 92, 66. What is the range of
harkovskaia [24]
The answer would be A.83 if I’m not mistaken, sorry if I’m no help
4 0
3 years ago
‼️PLEASE HELP ME‼️<br><br> The solution of the linear inequality 3x + 10 &lt; 6x + 9<br> is [ __,__)
jek_recluse [69]

Answer:

x= 1/3 its a fraction but i couldnt put the answer in fraction form.

Step-by-step explanation:

5 0
3 years ago
Need help (problem and directions in the image):
Alex

Triangle ABC is congruent to triangle CDE using the side - angle - side congruence theorem. The sink hole is 52.2 ft and the Perimeter of ABC is 172.2 ft

<h3>What are congruent triangles?</h3>

Two triangles are said to be congruent if they have the same shape and their corresponding sides are congruent.

In the image shown:

AC = CE, BC = ED and they have the same angle (opposite angles are congruent).

Hence:

Triangle ABC is congruent to triangle CDE using the side - angle - side congruence theorem.

AB = DE = 52.2 ft

Perimeter of ABC = AB + BC + AC = 50 + 70 + 52.2 = 172.2 ft

Find out more on congruent triangles at: brainly.com/question/2938476

#SPJ1

6 0
1 year ago
Alex and Freddy collect stamps. The number of stamps in Alex’s collection is in ratio 3:5 to the number of stamps in Freddy’s co
Tems11 [23]
Suppose Alex has 3x stamps, Freddy has 5x stamps. After Freddy gives Alex 10 stamps, Alex has 3x+10 while Freddy has 5x-10
the new ratio is 7 to 9, so we have the equation: (3x+10)/(5x-10)=7/9
9(3x+10)=7(5x-10)
27x+90=35x-70
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x=20
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4 0
3 years ago
A retailer ordered a combination of 50 black and white sweatshirts. Each white sweatshirt cost him $10 and
Brut [27]

The number of white  sweatshirts is 28

Step-by-step explanation:

Let ordered black shirts be represented by b

Let ordered white shirts be represented by w

So total sweatshirts will be represented by the equation

b+w=50

The total cost of the ordered sweatshirts will be represented by

10b + 12 w= $556

For simultaneous equations as;

b+w=50

10b+12w=556

solving the equations using substitution method where b=50-w

10(50-w)+12w=556

500-10w+12w=556

-10w+12w=556-500

2w=56

w=56/2= 28

b=50-w=50-28=24

Number of white  sweatshirts  is 28

Learn More

Simultaneous equation :brainly.com/question/12919422

Keyword : cost

#LearnwithBrainly

4 0
3 years ago
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