. Let f and ???? be the functions given by f(x) = x2 and ????(x) = x|x|.
1 answer:
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Answer:
15 minutes
Step-by-step explanation:
First, the motorcycle goes at a speed of 40 km/hr.
The question asks for how long it would take to travel 10 km.
Well, there are 60 minutes in an hour, since we will be translating into minutes.
Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.
1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.
Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.
Now cross multiply:
Divide both sides by 40:
Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.
Answer:
Step-by-step explanation:
we have that
The formula for the surface area of the enclosed space is
Solve for P
That means ------> isolate the variable P
Subtract lw both sides
Multiply by 2 both sides
Divide by h both sides
Rewrite