<span>Naming of rays
Rays are commonly named in two ways:
By two points.
In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on it's way to infinity. Recall that points are usually labelled with single upper-case (capital) letters. There is a symbol for this which looks like this: AB This is read as "ray AB". The arrow over the two letters indicates it is a ray, and the arrow direction indicates that A is the point where the ray starts.
By a single letter. (I have not seen this done.)
The ray above would be called simply "q". By convention, this is usually a single lower case (small) letter. This is normally used when the ray does not pass through another labeled point.</span>
The sunflower is 2.387 meters tall.
The question is asking: which rounding will result in the greatest value?
To see, we need to round 2.387 to meter, tenth meter, and hundredth meter.
Meter - 2 meters
Tenth meter - 2.4 meters
Hundredth meter - 2.39 meters
As you see, rounding to the tenth meter gives the greatest value of 2.4. Therefore, Bahir should use a decimal rounded to the tenth meter.
Im pretty sure you put the wrong picture. The slope isn't negative and there is no point O,A, or B.
This is what we know:4x^2 + 12x + c = (2x + k)^2
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4x^2 + 12x + c = 4x^2 + 2kx + 2kx + k^2
c=9
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The 3 panes would cost $7.65.
