Answer:
38.9 square inches.
Step-by-step explanation:
We are asked to find the difference in area covered by a single 3 inch windshield wiper operating with a central angle of 138 degrees compared to a pair of 5 inch wipers operating together each having a central angle of 114 degrees.
We will use area of sector formula to solve our given problem as:
, where, r represents radius and theta represents central angle.
Let us find area of sector with central angle 140 degree and radius 3 inch.



Now, we will find area of sector with central angle 114 degree and radius 5 inch and multiply by 2 as:




Let us find difference of area as shown below:



Therefore, the difference in area covered is approximately 38.9 square inches.
Answer:

Step-by-step explanation:
Answer:
only Tanveer's
Step-by-step explanation:
Answer:
67
Step-by-step explanation:
that rhythm describes it
Answer:
m = 4
Step-by-step explanation:
m−10+6m=10+2m
7m-10=10+2m
<em>Subtract 2m from both sides</em>
5m-10=10
<em>Add 10 to both sides</em>
5m=20
<em>Divide both sides by 5</em>
m=4