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alexira [117]
2 years ago
12

Please help i don't understand. will mark brainliest. answer the both questions

Mathematics
2 answers:
Sedaia [141]2 years ago
8 0

Answer:

The slope of a vertical line will always be 0

A graph with a negative slope increases from right to left

Step-by-step explanation:

vladimir1956 [14]2 years ago
5 0

Answer:

1-Undefined

2-Positive

Step-by-step explanation:

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True or false, -|21| is always positive
Anuta_ua [19.1K]

Answer:

yes because it | | means absolute value

Step-by-step explanation:

8 0
2 years ago
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I JUST NEED TO KNOW IF IM SUPPOSED TO SUBTRACT, ADD, MULTIPLY, OR DIVIDE
nadezda [96]

Answer:

the answer is multiple ............

5 0
3 years ago
The credit remaining on a phone card (in dollors) is a linear function of the total calling trime made with the card ( in minute
KATRIN_1 [288]

After 85 minutes of calls, there are $27.25 left on the card.

<h3>What is the remaining credit after 85 minutes of calls?</h3>

A linear equation in slope-intercept form is:

y = a*x + b

Where a is the slope.

If the line passes through two points (x₁, y₁) and (x₂, y₂) the slope is:

a = \frac{y_2 - y_1}{x_2 - x_1}

In this case, we know that the line passes through the points (22, 36.7) and (52, 32,20)

(points of the form (time, dollars)).

So the slope is:

a = \frac{32.2 - 36.7}{52 -22} = -0.15

The linear equation is then:

y = -0.15*x + b

To find the value of b, we use the point (22. 36.7)

36.7 = -0.15*22 + b

36.7 + 0.15*22 = b = 40

Then the linear equation is:

y = -0.15*x +40

The amount remaining in the credit card after 85 minutes is given by evaluating the above equation in x = 85.

y = -0.15*85 + 40 = 27.25

This means that after 85 minutes of calls, there are $27.25 left on the card.

If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

7 0
2 years ago
The drama club had a car wash as a fundraiser where they washed a total of 41 vehicles. Members washed
Dimas [21]

Answer:

<em>Solution: (26,15) </em>

<em> </em>

<em>Cars washed=26 </em>

<em> </em>

<em>Trucks washed=15</em>

Step-by-step explanation:

3 0
2 years ago
Plz help!! A jar contained 6 red marbles, 10 green marbles, and 8 blue marbles. A marble was selected at random, the color was r
Inessa [10]

Answer:

To calculate the relative frequency, first we need to know what exactly is and how to calculate it.

Relative frequency is the ratio between the absolute frequency (how many repetitions have a specific outcome) and the total outcomes. Also, this type of frequency is used to show the representation that some data have over the whole distribution.

So, in this case, we need to just divide 13, which belongs to red marble's results, to 60 which is the total outcomes, as it's presented:

         13redmarble                                                                                                                       Fr = -------------------------

       60 totalmarbles  

Normally, relative frequency is shown as a percentage multiplying this result by 100. Therefore, 22% is the approximate percentage of the relative frequency, which means that 22% is the representation of red marbles outcomes of the whole distribution, or we can say it as a probability: there's 22% of chances when someone extract a marble, it will be red.

3 0
2 years ago
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