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malfutka [58]
3 years ago
11

70. Area A car's rear windshield wiper rotates 125º. The

Mathematics
1 answer:
Gre4nikov [31]3 years ago
5 0

Answer:

175 square inches

Step-by-step explanation:

Area wiped by the wiper blade = Area covered by the whole wiper mechanism - Area that is not being wiped.

Where area of a sector of 125°....Area = 1/2.r^2.theta....but with theta in radians

Area covered of the whole wiper mechanism;

= 1/2 × 25^2 × (25pi/36)...in which (25pi/36) is 125° in radians..

=217.014pi

Area that is not being wiped;

= 1/2 × (25 - 14)^2 × (25pi/36)

= 42.014pi

Area wiped by the wiper blade

217.014 - 42.014

Area = 175 square inches

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horizontal = x-axis

vertical = y-axis

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T(x)=-22+44e^-0.03x

 

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Arturo is driving at a speed of 50 miles per hour. At 2:00 he
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If the midpoint of two points is (2,5) and one of the endpoints is (6,3), what is the other endpoint?
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To answer this question, you need to draw out the graph first. By doing so, you will be able to know where the other endpoint is located. (Fig. 1)

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From there, you can determine the other endpoint like this.
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Sorry for the messy drawing, it is hard to draw without a pen. Haha... hope this helps :)





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3 years ago
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