Answer:
x = 15
arc PQ = 110°
ΔPQR is an acute triangle
Step-by-step explanation:
(6x) + (8x-10) + (10x+10) = 360°
combine like terms:
24x = 360°
x = 15
arc PQ = 8(15) - 10° = 110°
This is the general formula for circle.
x² + y²=r²<span> ,where r is the radius
</span>
Consider the building as the centre of the circle, then the radius is equal to the furthest distance between <span>you and the tower that allow you to have coverage.
Hence,
r</span>² = 2025
r=√2025 = 45 miles
Answer:
C. The length of one lap.
Step-by-step explanation:
In the first four words, the problem statement tells you that L is <em>the number of laps run</em>. It is not the length of one lap.
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<em>Comment on the problem presentation</em>
Appropriate punctuation would be very helpful. Apparently, it is a 1/4-mile track, not a 14-mile track. Apparently, the distance is 1 1/2 miles, not 112 miles. Copying and pasting problem text often leaves out the special symbols used on some web sites. Some editing is usually needed.