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kakasveta [241]

3 years ago

14

The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is y + 7 = -2/5(x – 10). What is the

standard form of the equation for this line? A)2x – 5y = –15 B)2x – 5y = –17 C)2x + 5y = –15 D)2x + 5y = –17

1 answer:

Citrus2011 [14]3 years ago

7 0

C.
$2x + 5y = - 15$

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<img src="https://tex.z-dn.net/?f=%7Bx%7D%5E%7B%20log_%7B3%7D%28x%29%20%7D%20%20%3D%2081%20%7Bx%7D%5E%7B3%7D%20" id="TexFormula1

BlackZzzverrR [31]

Answer:

x=81 or 1/3

Step-by-step explanation:

$x^\log_3(x)} =81x^3\\\log_3(x^{\log_3(x)})=\log_3(81x^3)\\\(\log_3x)(\log_3x)=\log_381+\log_3x^3\\(\log_3x)^2=3\log_3x^+4\\\\Let u=\log_3x\\\\u^2-3u-4=0\\(u-4)(u+1)=0\\u=4 \\4=\log_3x\\x=3^4=81\\\\u=-1\\-1=\log_3x\\x=3^{-1}=1/3$

3 0

3 years ago

Do the ratios 10/8 and 16/20 form a proportion<br><br> Yes or no?

ziro4ka [17]

Answer:

No. Reduce 10/8 by dividing by 2. 10/8= 5, 8/2= 4. 10/8= 5/4. Reduce 16/20 by dividing by 4. 16/4= 4 , 20/4= 5. 16/20= 4/5.

6 0

3 years ago

Look at this graph:<br><br> What are the coordinates of the vertex?

asambeis [7]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

What is the median of the following 9 numbers 23,15,32,27,19,22

Travka [436]

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2 years ago

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2 years ago