What's 3.2rounded to the nearest tenth

Mathematics

1 answer:

Ede4ka [16]1 year ago

8 0

Answer : 3.2 because the 2 is in the tenth place and you can’t round any higher. so it would still be 3.2

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There are two ways to do this problem algebraically or trigonometrically.

Algebraically/geometrically

The ratios of the sides of a 30/60/90 tri. are x, x√3, 2x (short leg, long leg, hyp). Therefore, if the long leg is 6 'units'. then 6 = x√3. x = 6√3.

The hyp is 2x then the hypotenuse is 2(6√3) = 12√3, rationalizing is 12√3/3 = 4√3

Using Trig.

We can use sinx = y/r = opp/hyp. The long leg of 6 is opposite 60 degrees (pi/3).

Therefore, sin(pi/3) = 6/r =

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Given :-

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To Find :-

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