The following table shows the number of internet users in 2012 for the highest using countries.
1 answer:
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Answer:
<h2>Step-by-step explanation:
"half of R" it is:
"y cubed" it is:
Therefore, half of R subtracted from y cubed is:
Answer:
Step-by-step explanation:
Original Question:
- Nana has a water purifier that filters 1/3 of the contaminants each hour. She used it to purify water that had 1/2 kilogram of contaminants. Write a function that gives the remaining amount of contaminants in kilograms, C(t), t hours after Nana started purifying the water.
Explanation:
- Each hour, the water purifier filters 1/3 of the contaminants, meaning that the contaminant reduces by 2/3. If the contaminant was 1kg (for example), the mass would be 2/3 kg after 1 hour- after 2 hours, it'll be 4/9 kg, so we see a pattern. We need to multiply the contaminant by 2/3 every single hour.