3 years ago

The expression 2 log x - (3 log y + log z) is equivalent to

1 answer:

6 0

Answer:

$2 log(x )- (3 log(y) + log(z) ) \\ \equiv log( {x}^{2} ) - log( {y}^{3} ) - log(z) \\ \equiv log( \frac{x {}^{2} }{ {y}^{3} + z} )$

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What is the inverse of f(x)= 3x-9

JulsSmile [24]

If $f^{-1}(x)$ is the inverse of $f(x)$ , then

$f\left(f^{-1}(x)\right) = x$

Given

$f(x) = 3x-9$

composing with the inverse function gives

$f\left(f^{-1}(x)\right) = 3f^{-1}(x) - 9 = x$

Solve for the inverse:

$3f^{-1}(x)-9 = x \\\\ 3f^{-1}(x) = x+9 \\\\ \boxed{f^{-1}(x) = \dfrac x3 + 3}$

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3 years ago

Calculate your answer to the nearest hundredth 3x=40

Aneli [31]

13.33 is the correct answer

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4 years ago

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almond37 [142]

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3 years ago

a veterinarian purchases some medication for $19.50 and wants to make a $2 profit. what is the percent markup on this medication

uysha [10]

So he has to sell it at 19.5+2=21.5 dollars

so assume19.5=100%
the markup is 2 dollars
2=x%
find x if 19.5=100%

so since they are proportionite
19.5:100 and 2:x
if we make them fractions and flip one of them then multiply we will get 1 since
2/4=1/2
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19.5/100 times x/2=19.5x/200=1
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4 years ago

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4 years ago

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