Answer:
1. I have simplified the first question:
2. I have found the parabola properties:
After a special medicine is introduced into a petri dish full of bacteria, Every second, the number of harmful bacteria remaining in the body decays by a factor of 0.97
<h3>What is
bacteria?</h3>
Generally, a kind of unicellular bacteria that has characteristics with many disease-causing organisms, such as having a cell wall but lacking organelles and an organized nucleus.
In conclusion, When a certain medication is put into a petri dish that is full of bacteria, the amount of pathogenic bacteria that are still present in the body decreases by a factor of 0.97 every single second.
Read more about bacteria
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No this is to much work for something that is 5 points to do Na man but I hope this helps you in the future .
Answer:
The value of x = -0.46
Step-by-step explanation:
∵ 
÷ 
∴ 
* Subtract the power of the same bases
∴ 
* Let 
∴ 
∴ 4y² - 1 = -3y
∴ 4y² + 3y - 1 = 0 ⇒ factorize
∴ (4y - 1)(y + 1) = 0
∴ y + 1 = 0 ⇒ y = -1
∴ 4y - 1 = 0 ⇒ 4y = 1 ⇒ y = 1/4
∵ 
∴ y = -1 refused (
never gives -ve value)
∴ 
⇒ insert <em>ln</em> in both sides
∵ 
⇒ <em>ln</em>(e) = 1
∴ 3xln(e) = ln(1/4)
∴ 3x = ln(1/4)
∴ x = [ln(1/4)] ÷ 3 = -0.46
