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Lubov Fominskaja [6]
3 years ago
14

How far will a jet travel in 2 hours and 30 minutes if its average speed is 450 miles per hour?

Mathematics
2 answers:
svp [43]3 years ago
6 0
Well we know that in 1 hour it goes 450 miles. So to figure out how far it goes in 2.5 hours multiply 450 by 2.5 =1125. The jet will go 1,125 miles in 2.5 hours :)
Nezavi [6.7K]3 years ago
5 0
Distance = rate x time

D = 450 mph x 2.5 h
D = 1,125 miles
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Find the area of the shaded region. round answers to the nearest tenth. assume all inscribed polygons are regular. 29.3 units2
FromTheMoon [43]
The picture in the attached figure

we know that
the area of the shaded region is equal to
(2/3)*[area of the circle - the area of the triangle]  

step 1
Find the area of a circle Ac
Ac = π r²
Ac = π (6)²
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step 2
find the area of the triangle At
The triangle is an equilateral triangle with angles on each corner equal to 60 degrees. Meanwhile,
the 3 angles at the center is 120 degrees each since a circle is 360 degree.
 We know that the radius (line from centerpoint to corner) is equivalent to 6.
Using the cosine law,
we can calculate for the length of one side.
s² = 6^ + 6² – 2 (6) (6) cos 120
s² = 108
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step 3
the area of the shaded region=(2/3)*[area of the circle - the area of the triangle]  
the area of the shaded region=(2/3)*[113.10-46.77]------> 44.22 units²

therefore

the answer is
the area of the shaded region is 44.22 units²


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