3 years ago

Need help! Please hurry!!! Only have one person answer though!

Mathematics

1 answer:

Olegator [25]3 years ago

6 0

Answer:

-7(a + 2b + 4)

Step-by-step explanation:

-7a - 14b - 28

⇒ -7(a + 2b + 4)

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The ratio 5:20 written as a fraction

iogann1982 [59]

Answer:

1:4

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3 years ago

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How many solutions does this system have? y=3/4x-5 -3x+4y=-20?

Komok [63]

4y=-20+3x and 4y=13.6x-20
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-20+3x=13.6x-20
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3 years ago

matrenka [14]

Answer:

11 inch dummy

Step-by-step explanation:

4 + 7=11

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3 years ago

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Tom [10]

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2 years ago

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Make a rational equations with the following requirements

Rufina [12.5K]

Answer:

$f(x)=\dfrac{-50(x-1)(x-2)}{(x-5)(x+5)}$

Step-by-step explanation:

Since f(x) has asymptotes at x = 5 and x = -5, then the denominator of the rational function contains the terms (x - 5) and (x + 5):

$f(x)=\dfrac{?}{(x-5)(x+5)}$

Since f(x) has x-intercepts at x = 2 and x = 1, then the numerator of the rational function contains the terms (x - 2) and (x - 1):

$f(x)=\dfrac{A(x-1)(x-2)}{(x-5)(x+5)}$

Now substitute the point (0, 4) and solve for A:

$f(0)=4\\\\\implies \dfrac{A(0-1)(0-2)}{(0-5)(0+5)}=4\\\\\\\implies -\dfrac{2}{25}A=4\\\\\\\implies A=-50$

So final rational function:

$f(x)=\dfrac{-50(x-1)(x-2)}{(x-5)(x+5)}$

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2 years ago