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3 years ago

15

Write an inequality to describe the number of students in each homeroom: There is a limit of less than 30 students for each home

room.

1 answer:

s2008m [1.1K]3 years ago

4 0

Answer:

s<30

Step-by-step explanation:

Less than means that we do not include 30

s = number of students

s<30

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The answer would be 54 students liked dogs the best.

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A chemist recorded the change in temperature of a cooling liquid as −25.5°f over a 1.5 minute period. the temperature fell at a

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2 years ago

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A yellow ball, a red ball, a white ball and a

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Answer:

1/4 chance (this is equal to 25% as a percentage or 0.25 as a decimal)

Step-by-step explanation:

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2 years ago

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

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

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

$5b (x)= 20$

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so that means that a is

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$a + 8 = 9$

$a = 1$

So our equation is

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

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2 years ago

Use scalar multiplication to determine the coordinates of the vertices of the dilated figure.

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Answer:

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Step-by-step explanation:

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3 years ago