3 years ago

What is Logarithms ?

1 answer:

8 0

Answer:

In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.

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9r-5r+2+r ????????? Pls help me

Oksanka [162]

Answer:

5r + 2

Step-by-step explanation:

9r-5r+2+r=5r+2

\mathrm{Group\:like\:terms}

=9r-5r+r+2

\mathrm{Add\:similar\:elements:}\:9r-5r+r=5r

=5r+2

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3 years ago

Which ordered pair comes from the table ? HELPPP!

PIT_PIT [208]

It's (4,2). Can you comment why you're having a struggle with this? I might be able to help you.

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3 years ago

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Factor then solve. 1.81 - 4x²=0 2. 4s² + 9 = 12s

elena-14-01-66 [18.8K]

$1.\\81-4x^2=0\\\\9^2-(2x)^2=0\\\\(9-2x)(9+2x)=0\iff9-2x=0\ \vee\ 9+2x=0\\\\-2x=-9\ \vee\ 2x=-9\\\\x=4.5\ \vee\ x=-4.5$

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$2.\\4s^2+9=12s\\\\4s^2-12s+9=0\\\\(2s)^2-2\cdot2s\cdot3+3^2=0\\\\(2s-3)^2=0\\\\(2s-3)(2s-3)=0\iff2s-3=0\\\\2s=3\\\\s=1.5$

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3 years ago

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Mnenie [13.5K]

Here, GCF of 18 & 32 is 2, so take it as common factor,
18b - 32 = 2(9b - 16)

In short, Your Answer would be: 2(9b - 16)

Hope this helps!

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How are rotations represented as function

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Here is the answer from SparkNotes

http://www.sparknotes.com/math/algebra2/operationsonfunctions/section3.rhtml