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oksano4ka [1.4K]
3 years ago
8

3) 4x + 5y =-40Find X and Y intercept ​

Mathematics
1 answer:
mariarad [96]3 years ago
7 0
Slope- Intercept Form: y= -4/5x -8

Y Intercept: -8

X Intercept: -10
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(X^2 +4) +32=12x^2+48
s2008m [1.1K]
Let's solve your equation step-by-step.

<span><span><span><span>x2</span>+4</span>+32</span>=<span><span>12<span>x2</span></span>+48

</span></span>Step 1: Simplify both sides of the equation.


<span><span><span>x2</span>+36</span>=<span><span>12<span>x2</span></span>+48

</span></span>Step 2: Subtract 12x^2+48 from both sides.

<span><span><span><span>x2</span>+36</span>−<span>(<span><span>12<span>x2</span></span>+48</span>)</span></span>=<span><span><span>12<span>x2</span></span>+48</span>−<span>(<span><span>12<span>x2</span></span>+48</span>)

</span></span></span><span><span><span>−<span>11<span>x2</span></span></span>−12</span>=0

</span>Step 3: Use quadratic formula with a=-11, b=0, c=-12.

<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a

</span></span></span><span>x=<span><span><span>−<span>(0)</span></span>±<span>√<span><span><span>(0)</span>2</span>−<span><span>4<span>(<span>−11</span>)</span></span><span>(<span>−12</span>)</span></span></span></span></span><span>2<span>(<span>−11</span>)

</span></span></span></span><span>x=<span><span>0±<span>√<span>−528</span></span></span><span>−<span>22

Hopefully this helps!
</span></span></span></span>
4 0
3 years ago
What percent of 25 is 17? Please show work, thank you.
Elina [12.6K]
First, you would need to create an equation for this problem. Let x represent the unknown percentage. 
\frac{17}{25} = \frac{x}{100}

Next, you would cross multiply. 
25x = 1,700

Now, all you would have to do is isolate the x. To do this, you would divide both sides by 25. 
x = 68%

17 is 68% of 25. 

I hope this helps!
3 0
4 years ago
What polynomial has roots 3, 7, and −2?<br><br> What polynomial has roots 2, 4i, and −4i?
Gnoma [55]
Hope this can help you.

4 0
3 years ago
Please help! (giving extra points)
SVETLANKA909090 [29]
The answer is 2 2/3
The work for it:

3 0
3 years ago
Read 2 more answers
Please help tell me what i put on estimate and product
ololo11 [35]

Answer:

You should have it right I checked the math the product is right and the estimate would mate sense so that should be right

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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