3 years ago

There are (4^9)^5 •4^0 books are the library. What is the total number of books at the library?

Mathematics

1 answer:

VladimirAG [237]3 years ago

8 0

4^45

When you have exponents like that, you have to multiply them together. So, 9*5 =45

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

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olchik [2.2K]

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3 years ago

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

svp [43]

Imma just solve for f⁻¹(x) for this one

to solve fr the invers
replace f(x) with y
switch x and y
solve for y
replace y with f⁻¹(x)

I'm assuming your thing is $f(x)=log_2(x+4)$

remember

$log_a(b)=c$ translates to $a^c=b$

so
if we replace y with f(x)
$y=log_2(x+4)$
switch
$x=log_2(y+4)$
translate
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minus 4
$2^x-4=y$
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evaluate
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$f^{-1}(3)=8-4$
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it equals 4

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3 years ago

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