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Anni [7]
4 years ago
8

1 - 4 please help !!!!

Mathematics
1 answer:
dusya [7]4 years ago
3 0

We can use the slope formula for each of these.

\frac{y.2 - y.1}{x.2 - x.1} = m

1. 5 - 1  / 4 - 2

4 / 2

2

The slope is 2, and it is rising because it is positive.


2. -5 - 0 / 3 - (-1)

-5 / 4

The slope is -5/4, and it is falling because it is negative.


3. 1 - 1 / -3 - 2

0 / -5

0

The slope is 0, and it is a horizontal line. The value of y is not changing per value of x.


4. -5 - 2 / -1 - (-1)

-7 / 0

Undefined

The slope is undefined because it fails the vertical line test.

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Please help <br> Find the value of x
jeka57 [31]

Answer:

54

Step-by-step explanation:

The sum of given angles must be equal to 360°

3x° + 2x° + 90° = 360°

5x + 90 = 360

5x = 270 divide both sides by 5

x = 54

3 0
3 years ago
Fill in the missing term and select the missing description. Simplify any fractions.
mina [271]

Answer:

t = 18/2

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Sorry only thing I know is this!!

6 0
3 years ago
(Set up and solve the system, then answer the associated question)
Dimas [21]

9514 1404 393

Answer:

  • red division: 6 teams
  • blue division: 5 teams

Step-by-step explanation:

We can let r and b represent the numbers of teams in the red and blue divisions, respectively. The total number of goals scored in each division will be the average for that division times the number of teams in that division.

  r - b = 1 . . . . . . there is 1 more red team than blue

  4.5r +4.2b = 48 . . . . . . total goals scored per week

__

Solving by substitution, we have ...

  r = b +1

  4.5(b +1) +4.2b = 48 . . . . substitute for r

  8.7b +4.5 = 48 . . . . . . . . simplify

  8.7b = 43.5 . . . . . . . . . . subtract 4.5

  b = 43.5/8.7 = 5 . . . . . divide by 8.7

  r = b +1 = 6 . . . . . . . . . find r

There are 6 red teams and 5 blue teams.

_____

<em>Additional comment</em>

The basic idea is that you make an equation for each relation given in the problem statement. For a problem like this, you do need to have an understanding of how the average number of goals would be calculated and how that relates to the total goals.

8 0
3 years ago
21/√7-5√7/2 solve it
umka21 [38]

Answer:

√72

Decimal Form:

1.32287565…

Step-by-step explanation:

To subtract fractions, find the LCD and then combine.

5 0
2 years ago
If f(x) = 8, what is f(x) when x = 10?
poizon [28]
F(x) = 8.

This is a constant function. No matter the value of x, f(x) will always be = 8

Therefore when x = 10,   f(x) = 8.
4 0
3 years ago
Read 2 more answers
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