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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1/9 because i you plug in two of the points into y2 -y1 over x2 -x1 thats what you get.
Answer:
Equal sides = 6cm each
Unequal side = 12cm
Step-by-step explanation:
Perimeter of a triangle = side a + side b + side c
Let
Side a = side b = x
Side c = 2x
Perimeter of the triangle=24cm
Perimeter of a triangle = side a + side b + side c
24 = x + x + 2x
24 = 4x
Divide both sides by 4
24 / 4 = 4x / 4
6 = x
x = 6
The equal sides = x = 6cm each
The unequal side = 2x
= 2(6)
= 12cm
Check:
Perimeter of a triangle = side a + side b + side c
= 6cm + 6cm + 12cm
= 24cm
Answer:
8 classes
Step-by-step explanation:
Given



Required
The number of class
To calculate the number of class, the following must be true

Where k is the number of classes
So, we have:

Take logarithm of both sides

Apply law of logarithm

Divide both sides by log(2)


Round up to get the least number of classes

The answer to the question is $5.40