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NemiM [27]
3 years ago
7

FAST PLEASE !!!!

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
5 0

Answer:

2/3

Step-by-step explanation:

To get the slope, you do (y2-y1)/(x2-x1).

You can also remember it as rise/run, as it is the change in y/change in x.

You can make either coordinate 1 or 2, just keep it consistent with the rest of the problem.

For this, I chose (-5, -7) to be 2, and (4, -1) to be 1.

Following the formula for slope, (y2-y1)/(x2-x1), you put the values in: (-7-{-1})/(-5-4).

-7 minus -1 is -6 and -5 minus 4 is -9.

Thus you get -6/-9. Don’t forget to simplify! A negaive divided by a negative is positive, and both 6 and 9 can be divided by 3. 3 goes into 6 TWO times and into 9 THREE times.

So, you get a positive fraction, 2/3.

Hope this helped.

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Answer: $600.60

Step-by-step explanation: i hope this is correct have a great day :)

8 0
2 years ago
Solve the system of eqautions <br> y=x2-5x+7 , y=2x+1
IgorC [24]

Answer:

Step-by-step explanation:

The system of equations is given as

y=x^2-5x+7 - - - - - - - - - - 1

y=2x+1 - - - - - - - - - - - - - - 2

We would equate equation 1 to equation 2, it becomes

x^2-5x+7 = 2x+1

x^2-5x+7- 2x - 1 = 0

x^2-5x+7- 2x - 1 = 0

x^2 - 5x - 2x + 7 - 1 = 0

x^2 - 7x + 6 = 0

We would use the factorization method of solving quadratic equations.

x^2 - 6x - x + 6 = 0

x(x - 6) - 1(x - 6)

(x - 6)(x - 1) = 0

x - 6 = 0 or x - 1 = 0

x = 6 or x = 1

Substituting both values of x into equation 2, it becomes

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y=2×6 + 1 = 12 + 1 = 13

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For x = 1,

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3 0
2 years ago
Following are heights, in inches, for a sample of college basketball players. 78 83 82 78 78 80 81 79 79 83 77 78 84 82 80 80 82
blagie [28]

The mean height of the basketball players is 80.3 inches

For given question,

we have been given the list of heights, in inches, for a sample of college basketball players.

We need to find the mean height of the basketball players.

We know that, for given sample of data

mean = sum of all observations ÷ total number of observation

First we find the sum of given heights.

78 + 83 + 82 + 78 + 78 + 80+ 81 +79+ 79 +83+ 77 +78+ 84+ 82+ 80+ 80 +82+ 84+78+ 80 = 1606

Total number of observations = 20

Using the formula of mean,

⇒ mean height = 1606/20

⇒ mean height = 80.3 inches

Therefore, the mean height of the basketball players is 80.3 inches

Learn more about the mean here:

brainly.com/question/6813742

#SPJ4

3 0
1 year ago
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Inessa [10]

Answer:

±i√55

Step-by-step explanation:

4 0
3 years ago
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