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aleksandrvk [35]
3 years ago
11

If f(x)=27 and x=9, What is the constant of variation of (k) for this function?

Mathematics
1 answer:
ioda3 years ago
6 0
Y = k * x 

<span>When x = 7 then y = - 58 </span>


<span>- 58 = k * 7 Divide both sides with 7 </span>

<span>- 58 / 7 = k </span>


<span>k = - 58 / 7 </span>


<span>y = k * x </span>


<span>when x = 6 </span>


<span>y = - 58 * 6 / 7 </span>


<span>x = - 348 / 7
which would be -49.7</span>
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valkas [14]

Complete the chart  by marking each of the expenses in the correct cell depending on whether the expense occurs montlhy, quarterly, annually, etc. as shown in the chart.

<h3>What is a check-off matrix?</h3>

This is a type of chart that is completed by adding X to the cells. In the case of expenses, check-off matrixes help you to visualize how often every expense occurs, and therefore it can be useful to control or monitor expenses.

This type of matrix often includes:

-Columns with the months of the year or the initals of these. June = J.

-Rows that show the expenses a person has.

<h3>How to do a check-off matrix?</h3>
  1. List the expenses
  2. Make an X in each of the cells that the each expense should occur.
  3. Verify the information once the chart is finished.

Below you can find the complete chart:

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6 0
2 years ago
21000.7895÷444477777
Radda [10]
<span>21000.7895÷444477777</span>= 0.00004724823

4 0
3 years ago
Shiloh has to earn at least $200 to meet her fundraising goal. She has only 100 cakes that she plans to sell at 5 dollars each.
kakasveta [241]
Here is the inequality you can enumerate:

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x <= 100, this means you cannot sell more than 100 cakes, because you only have 100 cakes

Solve for them, you will get: 40 <= x <= 100
5 0
3 years ago
Graph the line. y=-4x+6 what the graph
Aloiza [94]
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Please help fast<br> The graph shows the function f(x)
DedPeter [7]

Answer:

3/1

Step-by-step explanation:

The average rate of change is the distance between y values divided by the distance between x values. We know this as rise/run or slope for linear equations. For non-linear equations, we calculate the average over an interval.

This function has y-values of -1 at x=0 and 5 at x=2.

We add -1+5=6 and divide this by 2-0=2.

6/2=3.

The y-values on average change 3 units for every 1 unit of the x-values.

4 0
3 years ago
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