Let us take a random triangle we call 
for a better understanding of the solution provided here.
A diagram of the is attached here.
The rule to be applied here is the relationship between the side lengths of a triangle and the angles opposite those sides. This relationship states that:
In a triangle, the shortest side is always opposite the smallest interior angle
and the longest side is always opposite the largest interior angle.
Let us verify this using the diagram attached.
As per the diagram, the smallest interior angle is 
and the side opposite to it, 
has the smallest side just as the relationship had suggested.
Likewise, the largest interior angle is 
and the side opposite to it, LM=45.7 is the longest side just as the relationship had suggested.
This rule/relationship can be applied to any triangle in question.
Looking at <span>4x3 + x2 – 8x – 2, I see immediately that x^2 can be factored out of the first 2 terms => 4x^2(x+1)
and -2 out of the last 2 terms => -2(4x+1).
Notice how the factor (4x+1) shows up twice.
We can factor this (4x+1) out, obtaining (x^2 - 2) (4x+1). These are the desired factors, found "by grouping."
</span>
Answer:
Brien is incorrect because he skipped step 2
Step-by-step explanation:
Solve this equation:
300+5x=450+2x
3x = 150
x = 50
so the answer is 50 books
To find the percentage of change, find the difference between the two by subtracting 31 from 62, leaving you with 31. Divide 31 by 62, which should give you 0.5. Multiply this number by 100, leaving you with 50%. There is a 50% change from 62 trees to 31 trees.
