The dish illustrates operations on a parabola.
The depth of the parabolish dish is 160 feet.
The bowl is said to be a parabola.
So, we have:
Where:
From the question, the diameter is 160 feet.
So, the radius (r) is:
So, the coordinate of the depth of the parabola would be:
Substitute these values in
So, we have:
Divide both sides by 160
Rewrite as:
Hence, the depth of the parabolish dish is 160 feet.
Read more about parabolas at:
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ANSWER
The height is
EXPLANATION
Let the height of the chimney be x.
Cross multiply
Put
into the equation;
Group similar terms:
The height of the chimney to the nearest feet is 22
(original - new)/original * 100%
(48-15)/48 * 100%
33/48 *100%
68.75 % decrease
Answer: x < -3
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Work Shown:
The boundary line is x = -3 as this vertical line goes through -3 on the x axis. Every point on this line has an x coordinate of -3 while the y coordinate is anything you want. So two points on this boundary line are (-3,0) and (-3,1)
The boundary line being dashed or dotted tells the reader "do not include this as part of the solution set".
So our answer will not have an "or equal to" as part of the inequality sign.
The shading to the left indicates we'll have a "less than" sign
So that's why the answer is x < -3
Every point in the purple shaded region has a point with an x coordinate that is less than -3. The value of y does not matter.
Two points in this shaded region are (-6,0) and (-4,7)
Points along the boundary line are not in the solution set.
Answer:
(2,1)
Step-by-step explanation:
x=4×1/2=2
y=2×1/2=1