What is the product of the polynomials below?
2 answers:
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The density of the pine wood, 4 cm on each side is 27/64 gram per cubic cm.
It is given in the question that each of the sides of the pine wood is 4 cm and it has the mass of 27 g.
We know that, the formula for density is given by:-
Density = Mass/Volume
As the pine wood has all of the sides equal, hence it is of cubic form.
We know that the volume of a cube =
Here, we have,
Side = 4 cm
Hence,
Volume of pine wood =
We know that,
Mass of pine wood = 27g
Hence, we can find,
Density of pine wood =
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Let:
• y, be the cost of the plan
,• x, be the minutes spend on call
This way, we'll have:
Plan A:
Plan B:
If the two plans cost the same, we'll have that:
Solving for x :
A) The two plans will cost the same for 140 minutes on call
The cost will be:
B) $36.80