How would a scale factor of 0.25 be used to determine the lengths of the original figure?
1 answer:
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Answer:
volume = 13500
Step-by-step explanation:
For a given pyramid, its volume can be determined by:
volume of pyramid =
Where: l is the base length, w is the base width and h id the height of the pyramid.
For the given question, l 30 cm, w = 30 cm and h = 45 cm.
So that,
volume =
=
= 13500
volume = 13500
The volume of the pyramid is 13500 .
Answer:
It will take 34.33
Step-by-step explanation:
* Lets talk about the compound continuous growing
- Compound continuous growing can be calculated using the formula:
# A = the future value
# P = the initial amount
# r = the growing rate in decimal
# t = the time
* Lets solve the problem
- The population of a particular country is growing at 3.2 %
compounded continuously
∴ r = 3.2/100 = 0.032
- We need to find how long will it take the population to triple
∵ The initial population is P
∴ A = 3P
∵
∴
- Divide both sides by P
∴
- Insert ㏑ for both sides
∴
- Remember
∴ ㏑(3) = 0.032t
- Divide both sides by 0.032
∴ t = ㏑(3)/0.032 = 34.33
* It will take 34.33