3 years ago

For every | | followers Brianna has, Mia has | | followers. HELP MEE

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

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For every 77 followers briana has 11 followers

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If f(x)=log2(x+4), what is f^-1(3)?

zalisa [80]

$f\left( x \right) =\log _{ 2 }{ \left( x+4 \right) } \\ \\ \log _{ 2 }{ \left( x+4 \right) } =y\\ \\ { 2 }^{ y }=x+4$

$\\ \\ x={ 2 }^{ y }-4\\ \\ \therefore \quad { f }^{ -1 }\left( x \right) ={ 2 }^{ x }-4\\ \\ \therefore \quad { f }^{ -1 }\left( 3 \right) ={ 2 }^{ 3 }-4=4$

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3 years ago

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inessss [21]

I attached a photo of my work below; I just screenshotted the photo you provided. I apologize in advance for any mistakes, it’s 1 am and I’m in need of some sleep. However, I hope it helps otherwise. Have a good one!

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2 years ago

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PLEASE HELP ASAP I NEED THIS!

Misha Larkins [42]

Answer:

it would be A

Step-by-step explanation:

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3 years ago

Finding Side Lengths in a Right Triangle

velikii [3]

Answer:

maybe it's 10.because c is 10,b is 10,and so as s.

hence s is 10 also.

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3 years ago

Determine for what values of x and y are the following equalities always true.

Agata [3.3K]

(k+1)x-(2k+3)y-3k-5=0
kx + x - 2ky - 3y - 3k - 5 = 0
(x - 2y) k + (x - 3y) = 3k + 5

therefore
x - 2y = 3
x - 3y = 5

Subtract 2 equations
y = -2
x = -1

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3 years ago