A puppy weighs 12 ounces. What fractional part of a pound is this?
2 answers:
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Hello,
The volume of a cylinder is
.
We have : h = 17 cm but we don't have the radius.
Therefore let's find it.
You have a rectangle triangle and one of its length is the radius of the cylinder base.
So let's apply the Pythagorean theorem.
For us : AB = 17 cm, AC = 15
AB² = AC² + BC²
17² = 15² + BC²
BC² = 17² - 15²
BC² = 289 - 225
BC² = 64
BC = √64
BC = 8 cm
Therefore the radius measures 8 cm and now we have everything to calculate the cylinder's volume.
Hope it helps !
The volume of a cylinder is
We have : h = 17 cm but we don't have the radius.
Therefore let's find it.
You have a rectangle triangle and one of its length is the radius of the cylinder base.
So let's apply the Pythagorean theorem.
For us : AB = 17 cm, AC = 15
AB² = AC² + BC²
17² = 15² + BC²
BC² = 17² - 15²
BC² = 289 - 225
BC² = 64
BC = √64
BC = 8 cm
Therefore the radius measures 8 cm and now we have everything to calculate the cylinder's volume.
Answer:
Speed of boat in still water is 6km/h
Speed of current is 4km/h
Step-by-step explanation:
We know speed = distance / time
Let the speed of boat in still water be x
Let the speed of current be y
Hence the speed of boat, down stream =
Distance downstream = 20km
Time taken = 2 hours
We have
......(1)
Speed of boat upstream =
Distance upstream = 4
Time taken = 2
We have
...(2)
Adding (1) & (2)
Substituting in (1) we get