On a part-time job, you are asked to bring a cylindrical iron rod of length 85.8 cm and diameter 2.85 cm from a storage room to
a machinist. Will you need a cart? (To answer, calculate the weight of the rod.)
1 answer:
Answer:
probably not
Step-by-step explanation:
The volume of the cylindrical shape is ...
V = πr²h = π(2.85 cm/2)²(85.8 cm) ≈ 547.35 cm³
The density of iron is reportedly about 7.874 g/cm³, so the mass of the iron rod is about ...
(547.35 cm³)(7.874 g/cm³) ≈ 4294.8 g ≈ 4.3 kg
This is approximately 9.5 pounds, which should be well within your capacity for carrying objects.
No cart should be necessary.
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Answer:
15.25% probability that Napoleon and Pedro catch the bus and make it to their first period class on time
Step-by-step explanation:
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this problem, we have that:
Event A: Both Napoleon and Pedro catch the bus, so P(A) = 0.25.
Event B: Making to their first period class on time.
However, the probability that they make it to their first period class on time, given that they catch the bus is 0.61.
This means that
What is the probability that Napoleon and Pedro catch the bus and make it to their first period class on time
15.25% probability that Napoleon and Pedro catch the bus and make it to their first period class on time