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emilyharper
07.12.2019 •
Mathematics
When camden left his house in the morning, his cell phone battery was partially charged. camden's phone lost battery life at a rate of 4% each hour and 2 hours after leaving his house, the battery had 24% remaining battery life. write an equation for the function
b
(
t
)
,
b(t), representing the charge remaining in camden's battery, as a percentage,
t
t hours after camden left his house.
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Ответ:
B(t) = (32 - 4t)% when 0 ≤ t ≤ 8
= 0 % for t > 8
Step-by-step explanation:
According to the question, when Camden left his house in the morning,
the charge in his battery was,
= 32 %
So, the charge in Camden's phone, t hours after he left the house is given by,
B(t) = (32 - 4t) % ------------(1)
Now clearly in (1),
0 ≤ t ≤![\frac {32}{4}](/tpl/images/0407/8164/5e16f.png)
⇒ 0 ≤ t ≤ 8 since charge in mobile phone can't have a negative percentage and time after Camden left home can't be negative.
So,
B(t) = (32 - 4t)% when 0 ≤ t ≤ 8
= 0 % for t > 8
Ответ:
youre hand writing sucks
Step-by-step explanation: