The back of a large truck can hold 3,560 pounds. If a crate of milk weighs 160 ounces, how many crates will the back of the truc
2 answers:
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Answer:
So if Jill, Sabrina and Kelly write the report together, it will take 4 hours.
Step-by-step explanation:
We know that Jill and Sabrina can write a lab report together in 6 hours. We know that all people work at the same rate.
So, we conclude that it will take Jill or Sabrina 12 hours if they write the report themselves. Kelly will also need 12 hours to write a report because we know everyone is working at the same speed.
We conclude that if all three work together they will need three times less time. We get:
So if Jill, Sabrina and Kelly write the report together, it will take 4 hours.
Remember that for a function of the form 
, a parabola, the focus will be: 
.
We know that the vertex of the parabola is (0,0), and the sun is the focus of the parabola; we also know that the focus is in the positive y-axis and when the comet is as its vertex, the distance between them is 60'000.000 km; therefore the focus of our parabola is (0, 60'000.000).
Now that we know the focus, we can find
using the focus of the parabola:
Now, the only thing left is replacing the value of in our equation :
We can conclude that the equation that represents the path of the comet is
We know that the vertex of the parabola is (0,0), and the sun is the focus of the parabola; we also know that the focus is in the positive y-axis and when the comet is as its vertex, the distance between them is 60'000.000 km; therefore the focus of our parabola is (0, 60'000.000).
Now that we know the focus, we can find
Now, the only thing left is replacing the value of
We can conclude that the equation that represents the path of the comet is