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2 years ago

X intercepts of -12x^2+108x=h and the y intercept

Mathematics

1 answer:

beks73 [17]2 years ago

7 0

Answer:

x: 0 or 9

y-int: 0

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Partial fraction decomposition<br> 20x+9/25x^2+20x+4

ozzi

Step-by-step explanation:

We have

$\frac{20x + 9}{25 {x}^{2} + 20x + 4 }$

Let's factor the denomiator first,

the denomaitor is a perfect square so we get

$\frac{20x + 9}{(5x + 2) {}^{2} }$

Now, we must think of two fractions that

$\frac{a}{(5x + 2) {}^{2} } + \frac{b}{5x + 2}$

We use a perfect square term for one fraction, then a linear one for the next, because if we set both of the denomiator to the same factor, we would get a inconsistent system.

So right now, we have

$\frac{a}{(5x + 2) { }^{2} } + \frac{b}{5x + 2} = \frac{20x +9 }{25 {x}^{2} + 20x + 4 }$

$a + (5x + 2)b = 20x + 9$

$5b (x)= 20$

$a + 2b = 9$

$b = 4$

so that means that a is

$a + (2)(4) = 9$

$a + 8 = 9$

$a = 1$

So our equation is

$\frac{1}{(5x + 2) {}^{2} } + \frac{4}{5x + 2}$

6 0

2 years ago

How does 2 relate to 3

erik [133]

Answer:

The number that was added to the previous number is doubled.

For example:

2+1 = 3

2x1= 2

3+2= 5

2x2=4

5+4=9

4x2=8

8+9=17

I hope this helps:)

4 0

1 year ago

Note the degree <br> x^3+x+x^2-2-x^3

iren [92.7K]

Answer:

2nd degree

Step-by-step explanation:

can't be x^3 because that cancels out, so the next highest one is x^2

8 0

2 years ago

Albert could race 4 times as fast as Bernard. For this reason Albert could race 48 miles in 3 hours less than it took Bernard to

Nastasia [14]

Albert runs 16 mph 0_0
Bernard runs roughly 10 mph

I don't know the time because i do not know how long the race is.

7 0

2 years ago

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One essential feature of the normal distribution is that its graph is

Anna11 [10]

One essential feature of the normal distribution is that its graph is SYMMETRIC

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2 years ago

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