Answer:
11 inches
Step-by-step explanation:
17/0.85 * 0.55
20 * 0.55
11.
Answer:
D. This is a Square Pyramid.
Step-by-step explanation:
Answer:
2.7 PM
Step-by-step explanation:
Since, the rate of spread is proportional to the product of fraction y of people who have heard the rumour and the fraction who have not heard,
Integrating both sides,
If t = 0, ( at 8 AM ), y =
Now, at noon, i.e t = 4, y =
If
Using graphing calculator,
t ≈ 6.722,
Hence, after 6.722 hours since 8 AM, i.e. on 2.7 PM ( approx ) the 90% of the population have heard the rumour.
Answer: 18050cm²
Step-by-step explanation:
Let me know if it's wrong or right.