Find the slope of (0,1) and (2,7)

Answers

Answer 1

Answer: slope is $\frac { y_(2) - y_(1)}{ x_(2) - x_(1)}$

if we plug in your coordinates we get:
$\frac { y_(2) - y_(1)}{ x_(2) - x_(1)} \n \frac {7-1}{2-0} \n \frac {6}{2} \n 3$

Therefore, the slope of (0,1) and (2,7) is 3.

Answer 2

Answer: slope= y2-y1
x2-x1
So in this case 7-1=6
2-0=2
This makes the answer 3

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How do you solve substitution to solve the sytem
x+y=2
-2x+y=2

Answers

so you want to make one of the equations equal to one of the placeholders exg y=x+3

so we have
x+y=2 and
-2x+y=2

I chose to make -2x+y=2 equal to y so
-2x+y=2
add 2x to both sides
y=2+2x

subsitute 2+2x for y in x+y=2
x+2+2x=2
add like terms
3x+2=2
subtract 2 from both sides
3x=0
x=0

subsitute x=0 in x+y=2
0+y=2
y=2

x=0
y=2

separate one variable in either equation, so for example:

x=-y+2
-2x+y=2

(if you dont know how to do that, tell me)

now that you have the variable separated, you can substitute the top equation in for the x in the second equation like this

-2(-y+2)+y=2

and now use the distributive property to get:

2y-4+y=2

and just combine like numbers.....

3y-4=2

and if you dont know how to solve it from here, comment to tell me but the rest of the problem would go like this:

3y-4=2
+4 +4

3y=6
/3 /3

y=2

and then you take this y and plug it back into one of the original two equations waaayy up at the top like this:

x+2=2

and solve...

x+2=2
-2 -2

x=0

so your final answer is (0,2)! Hope this helps!

What are the dimensions if the poster is enlarged by a factor of five over two ?7.5 ft by 30 ft
15 ft by 60 ft
1.5 ft by 6 ft
15 ft by 6 ft

Answers

7.5 x 30, 5/2 x 3 is 7.5, and 5/2 times 12 is 30

Answer:

the awnser is A 7.5 ft by 30ft

Step-by-step explanation:

5/2 of 3 is 7.5 since 5/2 as a decimal is 2.5 so do 2.5 x 3

then 5/2 of 12 would be 30 since again 5/2 as a decimal would be 2.5 so 2.5 x 12

Ok guys I would love to show you a pic of this but can't stupid phone not enough storage i deleted like a ton of stuff but I need another memory card anyways focus on the vertex only and rewrite the equation based on the transformation please give me an example

Answers

I would think that this would be an example of what you are looking for. By the way, you are so pretty! :) Sorry if I am wrong, I will try again if you don't think it is right.

What is the means-to-MAD ratio of the two data sets, expressed as a decimal to the nearest tenth? Data Set 1: {85, 83, 90, 70, 87} Data Set 2: {75, 74, 68, 83, 80}

Answers

Here is what I got for the first one. MAD= 1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|) =1/5(|85-83|+|83-83|+|87-83|+|90-83|+|70-83|) =1/5(2+0+4+7+13)) =5.2 And for the second one I got, MAD= 1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|) =1/5(|75-76|+|74-76|+|68-76|+|83-76|+|80-76|) =1/5(1+2+8+7+4)) =4.4

5. WHAT IS THE SOLUTION TO THE SYSTEM?
5x – 2y + z = 0
2x – y + z = 3
3x + 4y = 18

Answers

Answer:

x= 2/5 y - 1/5 z

x= 3/2 + 1/2 y -1/2 z

x = 6 - 4/3 y

Step-by-step explanation:

5x – 2y + z = 0

5x=2y-z

* Moving variables to the right side and changing their signs

* divide both sides by 5

Answer: x= 2/5 y - 1/5 z

2x - y + z = 3

2x = 3 + y - 2

Answer: x= 3/2 + 1/2 y -1/2 z

* move variables to the right sides and change their signs

* divide both sides by 2

3x + 4 y = 18

3x/3 = 18 - 4/3

Answer: x = 6 - 4/3 y

* Move variables to the right side and change its sign

* divide both sides by 3

A student solved this problem and said the answer is 2 3/8 pints. Richard took 4 1/8 pints of water with him on his hike. He drank water as he hiked. He has 1 3/4 pints left. How much water did Richard drink? Is the student's answer reasonable? A. Yes, the answer is reasonable. B. No, the answer is not reasonable. It should be about 1 pint. C. No, the answer is not reasonable. It should be about 3 pints. D. No, the answer is not reasonable. It should be about 6 pints.

Answers

A, The answer of 2 3/8 pints is correct

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