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Alenkinab [10]
3 years ago
11

PLEASE HELP ME

Mathematics
2 answers:
Crank3 years ago
8 0

Answer:

x  = (ln (9)-5) /3

Step-by-step explanation:

e^3x+5=9

First we subtract 5 from each side

e^3x+5-5=9-5

e^3x=(9-5)

Then we take the natural log of each side

ln(e^3x) = ln(9-5)

3x = ln (9-5)

Then we divide by 3 on each side

3x/3  = ln (9-5) /3

x  = ln (9-5) /3

erik [133]3 years ago
6 0

Answer:

x=\frac{-5+ln9}{3} which appears to be from the list x=ln9-5/3

Step-by-step explanation:

We take the natural logarithm of both sides as the inverse operation to an exponent on e. This allows us to use log rules to rearrange the problem.

e^{3x+5}=9\\lne^{3x+5}=ln9 \\(3x+5)lne=ln9

We know that as inverse operations, ln e =1.

(3x+5)(1)=ln9\\3x+5=ln9\\3x=-5+ln9\\\frac{3x}{3}=\frac{-5+ln9}{3}

x=\frac{-5+ln9}{3}

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I think it's A and D

Step-by-step explanation:

For option A, y would be the height or total growth, and x would be time or months and total height = 0.23 feet × 7.5 months

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Subtracting a number is the same as adding its additive inverse. For which elevation do we need to find the additive inverse?. W
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Answer:

Learning to subtract rational numbers by adding the additive inverse can be explained to your child as being the same as finding the opposite. This can even be described to your child as being a similar concept to one that they have worked with in the past where subtraction is the opposite of addition.

Additive inverse can be defined as adding a number with the opposite or the negative of that number to equal zero. The additive inverse of 1 is (-1), the additive inverse of 2 is (-2) and so on.

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You can then take additive inverse one step when finding the additive inverse when subtracting rational numbers.

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Step-by-step explanation:

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