2 years ago

Find the difference. (3- 2x + 2x2) - (4x -5 +3x2)

Mathematics

1 answer:

Gwar [14]2 years ago

6 0

Answer:

6(1-x) is the answer your looking for if I'm right

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5/4 to 3/8 as a percent change

Digiron [165]

Well, what's the diffrence from 5/4 to 3/8?

$\bf \cfrac{5}{4}-\cfrac{3}{8}\qquad \stackrel{\textit{LCD is 8 clearly}}{\implies }\qquad \cfrac{10-3}{8}\implies \cfrac{7}{8}$

so, if we take 5/4 to be the 100%, what is 7/8 off of it in percentage anyway?

$\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{5}{4}&100\\\\
\frac{7}{8}&x
\end{array}\implies \cfrac{\quad \frac{5}{4}\quad }{\frac{7}{8}}=\cfrac{100}{x}\implies \cfrac{5}{4}\cdot \cfrac{8}{7}=\cfrac{100}{x}
\\\\\\
\cfrac{40}{28}=\cfrac{100}{x}\implies x=\cfrac{28\cdot 100}{40}$

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2 years ago

I don't btgcygljhbihlihnjknkl;n

Digiron [165]

Yeah honestly same it’s ok tho

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2 years ago

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NEED HELP ASAP!!<br>what is the speed of the car

Damm [24]

The answer is about 43. In other words, it was going 43 mph.

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3 years ago

We can use special triangles to solve for x in triangle A<br>true or false

KIM [24]

I believe the answer is false.

explanation: a special triangle has side lengths of 3-4-5 or 6-8-10. In this case since you have 10 one of the other sides would have to be 6 or 8. You can use pythagorean theorem.

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Your social media ad costs $2.50 per thousand impressions. You get 3.14 million impressions. What is your approximate bill?

melomori [17]

Answer:

7,850

Step-by-step explanation:

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