- Save \& Exit Certify Lesson: 6.2 Exponential Models
MACKENZIE CRAWFORD
Question 2 of 9, Step 1 of 1
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Statistics show that the fractional part of a pair of flashlight batteries, $P$, that is still good after $t$ hours of use is given by $P=4-0.02 t$. What fractional part of the batteries is still operating after 200 hours of use? Express your answer as a fraction or as a decimal rounded to six decimal places.

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The final answer is $\boxed{0.0}$

Steps

Step 1 ：Substitute $t = 200$ into the equation $P=4-0.02 t$.

Step 2 ：Calculate the result to find the fractional part of the batteries that is still operating after 200 hours of use.

Step 3 ：After calculation, the result is 0.0. This means that after 200 hours of use, no fractional part of the batteries is still operating.

Step 4 ：The final answer is $\boxed{0.0}$