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:

, thus, the second option represents exponential decay.
Your answer is A. You literally plug in the numbers for a and b to solve for the equation.
Answer:
not sure man... goodluck tho
Answer:
The answer is d. Hope this helps :D
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