140 because 140 divided by 2 is 70, then 140 divided by 5 is 28, and 140 divided by 7 is 20.
a) d = r - 5 where t is the ful price
b) p = ( r - 5 ) * 1.05
c) p = (15.5-5)*1.05 = 10.5 * 1.05 = $ 11.02
The answer to number 1 = 40
The factored form of the related polynomial is (x - 1)(x - 9)
<h3>How to determine the
factored form of the related polynomial?</h3>
In this question, the given parameter is the attached graph
From the graph, we can see that the curve crosses the x-axis at two different points
These points are the zeros of the polynomial function.
From the graph, the points are
x = 1 and x = 9
Set these points to 0
x - 1 = 0 and x - 9 = 0
Multiply the above equations
(x - 1)(x - 9) = 0
Remove the equation
(x - 1)(x - 9)
Hence, the factored form of the related polynomial is (x - 1)(x - 9)
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area (pool)=area (rectangle) - area (triangle)
1) we calculate the area of the rectangle:
area (rectangle)=lenght x width
area (rectangle)=36 ft x 20 ft=720 ft².
2) we calculate the area of the triangle:
area (triangle)=(base x height) / 2
area (triangle)=(6 ft x 5 ft) / 2=15 ft².
3) we calculate the area of this pool:
area (pool)=720 ft²-15 ft²=705 ft²
Answer: the area of the pool is 705 ft².