Whats 45.678 in epanded form

Mathematics

1 answer:

Anna71 [15]3 years ago

8 0

In expanded form, 45.678 is:

40 + 5 + 0.6 + 0.07 + 0.008

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If f(x) = log2 (x + 1), what is f-1(2)? (2 points)

Soloha48 [4]

as you already know, to get the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

$\bf \textit{Logarithm Cancellation Rules} \\\\ log_a a^x = x\qquad \qquad \stackrel{\textit{we'll use this one}}{a^{log_a x}=x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{f(x)}{y}=\log_2(x+1)\implies \stackrel{\textit{quick switcheroo}}{\underline{x}=\log_2(\underline{y}+1)}\implies 2^x=2^{\log_2({y}+1)} \\\\\\ 2^x=y+1\implies 2^x-1=\stackrel{f^{-1}(x)}{y} \\\\[-0.35em] ~\dotfill\\\\ 2^2-1=f^{-1}(2)\implies 3=f^{-1}(2)$

3 0

3 years ago

Read 2 more answers

URGENT HELP NEEDED

kondor19780726 [428]

<span>"ratio of princesses to celebrities is 3:1"

The are 3 more times princesses as celebrities.

</span>"<span>The ratio of superheros to princesses is 5:4"

For each 4 princesses, there are 5 superheroes.

For 1 celebrity, there are 3 pincesses.

For 4 celebrities, there are 12 princesses.
For 12 princesses, there are 15 superheroes.

The ratio of celebrities to princesses to superheroes is
4:12:15 or 4x:12x:15x

Add them: 4x + 12x + 15x = 31x

31x = 93

x = 93/31 = 3

Celebrities: 4x = 4(3) = 12
Princesses: 12x = 12(3) = 36
Superheroes: 15x = 15(3) = 45

</span>

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2 years ago

The amounts a soft drink machine is designed to dispense for each drink are normally distributed, with a mean of 11.711.7 fluid

dexar [7]

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Step-by-step explanation:

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