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dusya [7]
3 years ago
13

-4 is greater than 4(2-w) greater than -12

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

-4>4(2-w)>-12

-1>2-w>-3

-3>-w>-5

3<w<5

~~~~~~~~~~~~~~~~~~~~~~~~~

If you're wondering why the sign changes when we divided (or multiplied) by a negative value, let's give a simpler example:

-5<-2 -> -5 is less than -2. That  expression makes sense. Now multiply that by -1. You get 5<x<2. Does that make sense? No. When you switch the signs of everything, the sign will always get switched.

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Step-by-step explanation:

\frac{154}{200} =0.77

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\sqrt{\frac{(0.77)(0.23)}{200} }=0.049

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3 years ago
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Answer:

4

Step-by-step explanation:

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Each pizza has 8 slices, so we divide 30 by 8 to get the number of pizzas needed.

30 / 8 = 3.75

You can't buy 3.75 pizzas, so you must get 4 to ensure everyone gets enough.

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3 years ago
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3 years ago
Find the length of the third side. If necessary, write in simplest radical form.<br> 2741<br> 8
ki77a [65]

Answer:

<u>10</u>

Step-by-step explanation:

Let the missing side be 'x'.

Using Pythagorean Theorem, we can find the missing side.

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Answer:

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