3 years ago

The following table shows the number of internet users in 2012 for the highest using countries.

Mathematics

1 answer:

Arisa [49]3 years ago

8 0

The median is 152 internet users :)

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Simplity (4^-2)^5<br> A.1/4^10<br> B. 4^3<br> C.1/4^3<br> D. 4^10

Goshia [24]

Answer:

$(4^{-2})^5=\dfrac{1}{4^{10}}$

Step-by-step explanation:

The given expression is : $(4^{-2})^5$

We need to simplify the above expression.

We know that, $x^{-a}=\dfrac{1}{x^a}$

$(4^{-2})^5=(\dfrac{1}{4^2})^5\\\\=\dfrac{1^5}{(4^2)^5}\\\\\because (x^b)^c=x^{b\times c}\\\\=\dfrac{1}{4^{10}}$

So, the simplified form of the given expression is $\dfrac{1}{4^{10}}$ . Hence, the correct option is (A).

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3 years ago

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pentagon [3]

Answer:

plot points at (0,4),(3,1),(5,7),(8,5)

Step-by-step explanation:

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2 years ago

18x^2+21x-9 I need to figure out how to work this problem

shtirl [24]

$18x^2+21x-9=3(6x^2)+3(7x)-3(3)\\\\=3(6x^2+7x-3)=3(6x^2+9x-2x-3)\\\\=3[3x(2x)+3x(3)-1(2x)-1(3)]\\\\=3[3x(2x+3)-1(2x+3)]\\\\=\boxed{3(2x+3)(3x-1)}$

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3 years ago

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Help please, Thank You!

Vitek1552 [10]

I believe it’s your first choice .

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3 years ago

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Translate the phrase into a math expression. 30 added to a number that is decreased by 5

grin007 [14]

If you want to translate the phrase 30 added to a number that is decreased by 5 into a math expression, you can do it like this:

a number ... n
30 added ... + 30
decreased by 5 ... - 5

Now you just have to put this together: n + 30 - 5 or n - 5 + 30. So, the correct result is a.

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3 years ago