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arsen [322]
3 years ago
7

What is 2x squared plus 5x - 9

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0
It would be 7x-9 because 2x squared would be 4x, and you can only simplify two numbers if they have the same variable after it. So, all you can do is simplify this equation down to 7x-9.
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snow_tiger [21]

well combine like terms

-3x = -21

divide both sides by -3

x = 7

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3 years ago
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Expand [a/3-b/6-1]^2
KATRIN_1 [288]

Answer:

(a/3

(  \frac{a}{3}  -  \frac{b}{5}  ) {}^{2}

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Luis rides his bicycle 34 mile in 5 minutes, or 112 hour, along the bike trail. Assuming he rides at a constant rate, what is hi
artcher [175]

Answer:

408\frac{miles}{hour}

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we know that

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so

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3 0
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You are in $33 in eight hours at that rate how much would you earn in five hours
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4 0
3 years ago
Write two ratios equivalent to 24 : 9.
notsponge [240]

Answer:

8:3

16:6

Step-by-step explanation:

First, let's check if 9 and 24 have any common factor. If they do have any common ones, we must find the GCF (greatest common factor).

Factors of 9: 1, 3, 9

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The common factors both of the numbers share and 1 and 3. To find the GCF, simply compare one of the factors to the other.

1 < 3

Now that we know the GCF, we can divide the two numbers in the ratio 24 : 9 by it (3).

24:9

24/3:9/3

<u>8:3</u>

Now that our ratio is simplified, it's going to be much easier to find more ratios that are equivalent. <u>8:3</u> is already one equivalent ratio, but if we multiply each number in the ratio by any other number, we can get a new equivalent ratio. Let's multiply each number in the ratio by 2:

<u>8:3</u>

8 ⋅ 2:3 ⋅ 2

<u>16:6</u>

<u></u>

So, another equivalent ratio to 24:9 (and <u>8:3</u>) is <u>16:6</u>.

3 0
3 years ago
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