The members of a cooking club are making cakes, which they will sell at a street fair for $14 apiece. It cost $22 for a booth at
1 answer:
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Answer:
a). cosA = 4/5
b).
For this case we have a function of the form , where
We must find the value of the function when , that is, we must find f (3). So:
So
Answer:
Answer:
18432 km/h
Step-by-step explanation:
It is given that a sound wave travels through iron at a rate of 5120 m/s.
We know that
1 km = 1000 m
1 hour = 60 minutes
1 minutes = 60 second
Using these conversions we get
1 m = 0.001 km
1 hour = 3600 second
Therefore, the sound wave travels through iron at a rate of 18432 km/h.