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3 years ago

10

Need answer to this math problem

2 answers:

Elis [28]3 years ago

8 0

The slope of this line is the difference of the y values divided by the difference of the x values. Solving this give 4/-3. Then, you already know the b in y = mx+b, which is 2, because you already have the value (0, 2). So, the answer is y = $-\frac{4}{3}$ x + 2

Rasek [7]3 years ago

3 0

$y=mx+b\medskip\\\begin{cases}-2=3m+b\\2=b\end{cases}\Leftrightarrow\begin{cases}-2=3m+2\\b=2\end{cases}\Leftrightarrow\begin{cases}m=-\dfrac{4}{3}\\b=2\end{cases}\medskip\\y=-\dfrac{4}{3}x+2$

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ElenaW [278]

193,800,000-31,300,00-23,200,000=139,300,000 is correct I think

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4 years ago

7 A drawer contains 28 socks. Some are white, some are blue, some are red, and some

goldenfox [79]

Answer:

there are 8 blue socks

Step-by-step explanation:

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3 years ago

Read 2 more answers

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NemiM [27]

Answer:

The angles of both triangles are the same

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3 years ago

Pls help will give brainiest!!!

Artist 52 [7]

Answer:

ikaw mag sagut nyan tiba may utak ka? Tanga kaya mo na yan

Step-by-step explanation:

She's imperfect but she tries

She is good but she lies

She is hard on herself

She is broken and won't ask for help

She is messy but she's kind

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2 years ago

I need help! 50 points + brainliest

AlladinOne [14]

Answer:

Part 1)

A

Part 2)

C

Step-by-step explanation:

1)

We are given:

$f(x)=5x+1\text{ and } g(x)=x^2-9$

And that:

$h(x)=f(x)/g(x)$

And we want to now for which values of x is h(x) undefined.

So, by substitution:

$\displaystyle h(x)=\frac{5x+1}{x^2-9}$

Remember that for rational functions, the function will be undefined if and only if the denominator is 0.

This is because we cannot divide by 0.

So, to find the values for which the denominator is 0, set the denominator to 0 and solve for x. Therefore:

$x^2-9=0$

Add 9 to both sides:

$x^2=9$

Take the square root of both sides. Since we are taking an even-root, we will need plus/minus. Therefore:

$x=\pm 3$

So, h(x) is undefined for ±3.

Our answer is A.

2)

We are given:

$f(x)=3^x\text{ and } g(x)=3^{2x}-3^x$

And we want to find:

$h(x)\text{ if } h(x)=f(x)-g(x)$

So:

$h(x)=3^x-(3^{2x}-3^x)$

Distribute:

$h(x)=3^x-3^{2x}+3^x$

Combine like terms:

$h(x)=2(3^x)-3^{2x}$

Rewrite:

$h(x)=2(3^x)-(3^x)(3^x)$

Factor out:

$h(x)=3^x(2-3^x)$

So, our answer is C.

6 0

3 years ago