Which expression is equivalent to -4(w-1)4w-44w-4w+4 -5wNone of the above
2 answers:
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Functions can be represented on graphs
The value of f(k + 3) is 0
Given that:
From the graph, we have:
So, by comparison:
Substitute 2 for k in f(k + 3)
From the graph, f(5) = 0
So, we have:
Hence, the value of f(k + 3) is 0
Read more about functions and graphs at:
Answer:
The correct option is B) 12.
Step-by-step explanation:
Consider the provided information.
Working alone at its constant rate, pump X pumped out ¼ of the water in a tank in 2 hours.
As we know: ,
The rate of pump X is
of the water is pumped out of the tank, that means only
is left to be pumped out.
All 3 pumps pumped out the remaining of the water out in 3 hours.
The combined rate of all three pumps is:
Pump Y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water.
The rate of pump Y =
Let z is the time taken by pump Z, then the rate of pump Z is .
Therefore,
Multiplying both sides by 24 z.
Hence, the correct option is B) 12.