3 years ago

PLEASE HELP ASAP!

Mathematics

2 answers:

frez [133]3 years ago

5 0

Answer:

a. 3 is the closest choice.

Step-by-step explanation:

2 = 3.80 e^-0.20x

e^-0.20x = 2/3.8

Taking logs:

-0.20x = ln(2/3.8) = -0.64185

x = 3.2.

morpeh [17]3 years ago

3 0

Answer:

Step-by-step explanation:

1) Take the natural log of both sides, obtaining:

-0.20x + ln 3.80 = ln 2

2) Group the ln terms on the right side: -0.20x = ln 2 - ln 3.80

3) Find the natural logs of 2 and 3.80 and combine them: -0.408, so that we have 0.20x = 0.408.

4) Solving for x, we get 2.03, or approx 2 (Answer C)

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