Example 3
1 answer:
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It is often more convenient to evaluate a polynomial when it is written is "Horner form."
... f(x) = (((10x -4)x -8)x +3)x -6
The graphs offered can be distinguished by their values of f(1) and f(2), so our table can be a short one.
... f(1) = (((10·1 -4)1 -8)1 +3)1 -6 = -5 . . . . . . . eliminates graph d
... f(2) = (((10·2 -4)2 -8)2 +3)2 -6 = 96 . . . . eliminates graphs a and c
The appropriate choice is b.
Answer:
Part a) The area of the swimming pool is
Part b) The total area of the swimming pool and the playground is
Step-by-step explanation:
Part a) Find the area of the swimming pool
we know that
The area of the swimming pool is
where
L is the length side
W is the width side
we have
substitute the values
therefore
The area of the swimming pool is
Part b) The area of the playground is one and a half times that of the swimming pool. Find the total area of the swimming pool and the playground
we know that
To obtain the area of the playground multiply the area of the swimming pool by one and a half
To obtain the total area of the swimming pool and the playground, adds the area of the swimming pool and the area of the playground
so
therefore
The total area of the swimming pool and the playground is