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notka56 [123]
3 years ago
15

4х +7 у+ 1 Зу — 11 12x – 1

Mathematics
1 answer:
VladimirAG [237]3 years ago
8 0
I need to type and make this 20 characters long but here you go

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At 5:45 p.m., a jet is located 108 mi due east of a city. A second jet is located 214 mi due north of the city. To the nearest t
siniylev [52]
By connecting the distances traveled by the jet and the distance between them, we form a right triangle with hypotenuse equal to the unknown distance. 
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3sin60°+xcos30°.tan45°=xcot30°
Sliva [168]

Answer:

x = (6\sqrt{2})/(4\sqrt{2} -3)

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cos30 degree = 1/2

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so, let us plug the above values in the given eqution and solve for x

3(\sqrt{3} /2 ) + x(1/2) *1 = x(\sqrt{3})

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3(\sqrt{3} /2 )  = x((\sqrt{3})-(1/2)) (by taking x as a common factor)

3(\sqrt{3} /2 ) = x(((2\sqrt{3})-(1))/2))    (making the same common denominator

now devide both sides by (((2\sqrt{3})-(1))/2))

x  = 3(\sqrt{3} /2 )  / (((2\sqrt{3})-(1))/2))

x = 3(\sqrt{3} ) / ((2\sqrt{3})-(1))

3 0
3 years ago
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