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Mariulka [41]
3 years ago
13

Need these answered before 9:00pm tonight

Mathematics
2 answers:
yawa3891 [41]3 years ago
8 0

1. You are correct. Slope is a line's rise over its run. This line goes down 2 units for every one unit right.

2. Building off of this, you can see that for this problem, the line goes up 1 unit every 2 units right, making your slope 1/2.

3. This is a bit more confusing than the last two, so you can find the slope of the line using the slope formula. In this case, I will be using points (-5,-2) and (5,5). Slope formula is \frac{y2-y1}{x2-x1}. This becomes \frac{5-(-2)}{5-(-5)} which is \frac{7}{10}.

4. Using the points (-5,4) and (5,-4): \frac{-4-4}{5-(-5)}. This is -\frac{8}{10} and -4/5 in simplest form.

5. The line goes down 5 units every one unit to the right. Because it goes down, our slope is -5.

6. The line goes up 5 units every time it moves right once. The slope is the same as #5 except for the fact that it's positive, so it goes up.

7. The line goes down one unit every 5 units to the right, making our slope -\frac{1}{5}.

8. The line goes down 4 units every 2 units to the right, which is -4/2, although I would recommend writing it as -2.

timurjin [86]3 years ago
3 0

Answer:


Step-by-step explanation:

2)1/2


3)1


4)-1


5) -5


6)5


7)-1/5


8)-2


Please  make me brainiest

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The number 16 has two square roots: 4 and
maw [93]

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4 and -4 are both the square roots of 16

Step-by-step explanation:

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Ivahew [28]

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x^2-2x-3

Explanation: Use FOIL

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Addition and Subtraction of Rational
kvv77 [185]

Answer:

\frac{-1}{6}

Step-by-step explanation:

-\frac{5}{12}  + \frac{3}{12} = -\frac{2}{12}

-\frac{2}{12} = -\frac{1}{6}

which can also be written as:

\frac{-1}{6}

4 0
3 years ago
I need help with both of these questions please
tankabanditka [31]

Answer:

\frac{22}{30} = \frac{11}{15}

and

\frac{176}{7} = 25 \frac{1}{7}

Step-by-step explanation:

First make all the fractions into improper fractions

1\frac{5}{6} = \frac{11}{6} \\\\2\frac{1}{2} = \frac{5}{2} \\\\3\frac{1}{7} = \frac{22}{7}

After doing that put them back into the problems

Problem 1)

1\frac{5}{6}  ÷ 2\frac{1}{2} , plug in the improper fractions

\frac{11}{6} ÷ \frac{5}{2}

to divide, you need to flip the second fraction and multiply

\frac{11}{6}· \frac{2}{5} = \frac{22}{30}

then reduce

\frac{22}{30} = \frac{11}{15}

Problem 2)

3\frac{1}{7}÷ \frac{1}{8}\\

Plug in improper fraction

\frac{22}{7} ÷ \frac{1}{8}\\

Then flip second fraction and multiply

\frac{22}{7} · \frac{8}{1}

Multiply

\frac{176}{7}

Reduce, or make it a mixed number

\frac{176}{7} = 25 \frac{1}{7}

3 0
3 years ago
On a certain hot summer day, 481 people used the public swimming pool. The daily prices are 1.25 for children and 2.25 for adult
spayn [35]

Answer:the number of children that swam in the public pool that day is 222

the number of adult that swam in the public pool that day is 259

Step-by-step explanation:

Let x represent the number of children that swam in the public pool that day.

Let y represent the number of adult that swam in the public pool that day.

On a certain hot summer day, 481 people used the public swimming pool. This means that

x + y = 481

The daily prices are 1.25 for children and 2.25 for adults. The receipts for admission totaled to 86.25. This means that

1.25x + 2.25y = 860.25 - - - - - - - -1

Substituting x = 481 - y into equation 1, it becomes

1.25(481 - y) + 2.25y = 860.25

601.25 - 1.25y + 2.25y = 860.25

- 1.25y + 2.25y = 860.25 - 601.25

y = 259

Substituting y = 259 into x = 481 - y, it becomes

x = 481 - 259

x = 222

8 0
3 years ago
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