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Levart [38]
3 years ago
15

Heyy pls help! worth 20 points, and please only help if you know the answer. also no links those r kinda annoying lol

Mathematics
1 answer:
iragen [17]3 years ago
7 0

Step 1: Find the slope:

    m= \dfrac{y_2-y_1}{x_2-x_1}= \dfrac{-2-7}{4-(-2)} =  \dfrac{-9}{6}= -\dfrac{3}{2}

This gives you y=-\dfrac{3}{2}x+b, but we need to find b.

To find b, substitute in one (x,y) pair and it doesn't matter which one.  I'll go with (4,-2):

    \begin{aligned}-2&=-\dfrac{3}{2}(4)+b\\[0.5em]-2&=-6+b\\[0.5em]4&=b\end{aligned}

Now take that b-value and plug in into the slope-intercept form:

     y=-\dfrac{3}{2}x+4

It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.

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If f(x)=3x+2, what is f(5)
patriot [66]

Answer:

<h2>f(5) = 17</h2>

Step-by-step explanation:

f(x)=3x+2

To find f (5) replace every x in f(x) by 5

That's

f(5) = 3(5) + 2

= 15 + 2

<h3>= 17</h3>

Hope this helps you

5 0
3 years ago
Nike Super Sale $$$ (Additional Instructions in Photo) !!25 POINTS!!
mr Goodwill [35]

The markup percentage regarding the sale of the good will be 136%.

<h3>How to calculate the percentage?</h3>

From the information given, the initial cost is $55.00 and the new price is $130.19. The increase in percentage will be:

= (130.19 - 55)/55 × 100

= 75.19/55 × 100

= 136%

Therefore, the markup percentage regarding the sale of the good will be 136%.

Learn more about percentage on:

brainly.com/question/24304697

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5 0
2 years ago
9) 80 is 20% of what number?
sweet-ann [11.9K]
<h3><u>Answer:</u></h3>
  • 400 is the number.
<h3><u>Step-by-step explanation:</u></h3>

<em>There can be many ways to find the number.</em><em> I have found the number with the help of fractions and multiplication. </em><em>Below is the solution to your problem.</em>

  • 80 = 20/100
  • => 5 x 80 = 20 x 5/100
  • => 400
<h3><u>Conclusion:</u></h3>

<em>Hence, 80 is 20% of 400. </em><em>I hope my method helped you.</em>

BrainiacUser1357

8 0
2 years ago
Read 2 more answers
I need a little help here please make it right :(
IRINA_888 [86]

Answer:

-3 X 7= -21

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Farmer Emmet used to own 2,300 acres of farmland. However, he recently sold 28% of his farm to a residential developer.
kap26 [50]

9514 1404 393

Answer:

  1. 1656 acres left
  2. 644 acres sold
  3. $32,200,000

Step-by-step explanation:

1. The number of acres sold is ...

  28% × 2300 = 0.28 × 2300 = 644

Then the number of acres Emmet has left will be ...

  2300 -644 = 1656 . . . acres left

__

2. Emmet sold 644 acres.

__

3. At $50,000 per acre, the value of the land sold was ...

  $50,000 × 644 = $32,200,000 . . . . paid by the developer

5 0
2 years ago
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