3 years ago

Which of the following is the result of the equation below after completing the square and factoring? x^2+3x+8=6

Mathematics

1 answer:

Inessa05 [86]3 years ago

6 0

Answer:

Step-by-step explanation:

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Answer:

y= 7^-t

Step-by-step explanation:

Equation for exponential decay:

An equation represents exponential decay if a term between 0 and 1 is elevated to the independent variable.

In this question:

First option 4 is elevated, so not exponential decay.

Second option:

$7^{-t} = \frac{1}{7^t} = (\frac{1}{7})^{t}$

$0 < \frac{1}{7} < 1$ , thus, the second option represents exponential decay.

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