Answer:
3380
Step-by-step explanation:
Given,
Radius (r) = 13m
Height (h) = 20m
Now,
Volume = r²h = * 169m² * 20m = 3380m³
Answer:y = 15
Step-by-step explanation:
<u>Concept:</u>
Here, we need to know the idea of similar triangles.
Two triangles are similar if they have the same ratio of corresponding sides and equal pairs of corresponding angles.
If you are still confused, please refer to the attachment below for a graphical explanation.
<u>Solve:</u>
<em>Set up the proportion between the sides</em>
Small / Big = Small / big
10 / 22 = y / 33
<em>Cross-multiply to simplify the proportion</em>
22 · y = 33 × 10
22y = 330
<em>Divide 22 on both sides</em>
22y / 22 = 330 / 22
y = 15
Hope this helps!! :)
Please let me know if you have any quesitons
-9m+81-m^2+9m = 81 - m^2 (final answer since -9m and 9m cancels each other out)
The second number is 25% larger than the first number
The first number is 20% smaller that the second number
Step-by-step explanation:
Let us revise the percentage of increasing and decreasing
- Increasing% = [(large - small)/small] × 100%
- Decreasing% = [(large - small)/large] × 100%
∵ The two numbers are 20 and 25
∵ 25 is the larger
- Find the percentage of increasing to find the second number
is larger than the first number by what percent
∴ The large number is 25
∴ The small number is 20
∴ Increasing% = × 100%
∴ Increasing% = 25%
∴ The second number is 25% larger than the first number
- Find the percentage of decreasing to find the first number
is smaller than the second number by what percent
∵ Decreasing% = × 100%
∴ Decreasing% = 20%
∴ The first number is 20% smaller than the second number
The second number is 25% larger than the first number
The first number is 20% smaller that the second number
Learn more:
You can learn more about the percentage in brainly.com/question/12284722
#LearnwithBrainly
Answer:
Simpiwe: 2km:45mins. - Mpume 4km: 1h. 30mins.
Step-by-step explanation: