Answer:
to the nearest tenth
Step-by-step explanation:
find the area of the semi circle
find area of the whole shape
then subtract both areas to get shaded area
Answer:
18a+9
Step-by-step explanation:
distribute 9 to the equation
9(2a)=18a
9(1)=9
answer is 18a+9
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.