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2 years ago

Which set of ordered pairs does NOT represent a function?

Mathematics

2 answers:

Alecsey [184]2 years ago

8 0

Answer:

Step-by-step explanation:

The reason why it does not represent a function is because a function cannot repeat itself in the x axis

saveliy_v [14]2 years ago

3 0

I think it would be B but I'm not sure

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How is number 0.000063 written in scientific notation?

katen-ka-za [31]

Step-by-step explanation:

The scientific notation:

$a\times10^k$

1 ≤ a < 10 and k - any integer number

$0.000063=0\underbrace{.00006}_{5\to}3=6.3\times10^{-5}\\\\\\0.000063=6.3:100,000=6.3:10^5=6.3\times10^{-5}$

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3 years ago

If an image of a triangle is congruent to the pre image then the scale factor of the dilation must be n=

Kazeer [188]

1. the image is multiplied by the scale factor. if the scale factor is 2, the image is twice the size of the preimage. if the scale factor is ⅓, the image is one third the size. only a scale factor of 1 preserves congruency

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3 years ago

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kondaur [170]

It depends on H(m) what is it?

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2 years ago

2(10r-7)-2(1+10r)=-r+2r

DerKrebs [107]

Answer:

r = -16

Step-by-step explanation:

We will use "distributive" property and "adding like terms" concepts in solving for the unknown variable "r".

The distributive property is:

a(b+c) = ab + ac

2(10r-7) = 20r - 14

also

-2(1+10r) = -2 - 20r

So, our equation becomes:

$2(10r-7)-2(1+10r)=-r+2r\\20r-14-2-20r=-r+2r$

Now we add like terms and move variables (r) to one side and numbers to another. Like terms mean:

3r + 5r = (3+5)r = 8r

So, we have:

$20r-14-2-20r=-r+2r\\-16=r\\r=-16$

So,

the value of r is -16

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3 years ago

Culture A or culture B ??

RSB [31]

It would be B
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3 years ago