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2 years ago

5

I need lots of help on this :(

1 answer:

Alexeev081 [22]2 years ago

7 0

Answer:

the answer is C

Step-by-step explanation:

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Write in expanded form 3.124

Mamont248 [21]

3.124
3 + 0.100+ 0.020 + 0.004

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2 years ago

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Two lines are perpendicular if they are para el and cross

eduard

Answer:

If they create a 90 degree angle then yes.

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2 years ago

Solve 2x + 5y = 20; 3x - 10y = 37 by elimination. How do you do this? Thank-you!

mr Goodwill [35]

$\left\{\begin{array}{ccc}2x+5y=20&\text{multiply both sides by 2}\\3x-10y=37\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+10y=40\\3x-10y=37\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad7x=77\qquad\text{divide both sides by 7}\\.\qquad\boxed{x=11}\\\\\text{Put the value of x to the first equation:}\\\\2(11)+5y=20\\\\22+5y=20\qquad\text{subtract 22 from both sides}\\\\5y=-2\qquad\text{divide both sides by 5}\\\\\boxed{y=-\dfrac{2}{5}}\\\\Answer:\ \boxed{x=11\ and\ y=-\dfrac{2}{5}}$

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2 years ago

pls help if you answer correctly i will give you brainliest and i will give a reward of a lot of points you just have to check b

Ierofanga [76]

Answer:

15.5 i believe

Step-by-step explanation:

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2 years ago

Can someone please help me quick I have no Idea what this means and it is due tomorrow

Tems11 [23]

12563 is the correct answer

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2 years ago