HELP PLEASE. When finding the surface area of a composite figure, why is it often necessary to subtract sides common to each ind
ividual shape? Complete the explanation.
Identifiable shapes that are easy to find the (volume/surface area) of in composite figures will often have portions that overlap with each other. After finding the surface area of each individual shape, simply adding these surfaces areas together will result in a number (greater/less) than the real surface area. This means that after adding the surface areas of the individual shapes, it is necessary to (add/subtract) sides common to both shapes to get the true surface area.
Identifiable shapes that are easy to find the (volume/surface area) of in composite figures will often have portions that overlap with each other. After finding the surface area of each individual shape, simply adding these surfaces areas together will result in a number (greater/less) than the real surface area. This means that after adding the surface areas of the individual shapes, it is necessary to (add/subtract) sides common to both shapes to get the true surface area.
1 answer:
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The value of x is x and x
Step-by-step explanation:
Factorisation is not possible in this case since the 2 pairs available will not be giving the same outcome as required in factorisation.
This is a quadratic equation
x² + x² – 3x – 3 = 0
2x² - 3x - 3 = 0
<u>Quadratic formula:</u>
a=2
b= -3
x= -3
=
= 2.186
or
=
= -0.686
Therefore, the value of x is,
x and x
Keyword: Factoring, Quadratic
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