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3 years ago

What is 2.235 rounded to the nearest tenth?

Mathematics

2 answers:

Mama L [17]3 years ago

7 0

The answer is 2.20. Thanks for the question!!

Anon25 [30]3 years ago

6 0

When you are looking to round a decimal to the nearest tenth,, the first thing you need to do is to look at the first number behind the decimal. if the number is less than 5 you round down, but if it is 5 or larger then you round up. looking at the number 2.235,, you can see that the first number behind the decimal is 2 which means that we need to round down. this means the correct answer to your question is 2.2.
let me know if you have any further questions
:)

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Answer:

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Step-by-step explanation:

We are given;

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Using the law of cosines,we have;

b² = a² + c² - 2ac•cos(B)

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169 = 225 + c² - 30c•cos(55)

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Using quadratic formula;

c = [-(-17.208) ± √((-17.208)² - (4•1•56)]/2(1)

c = [17.208 ± √(296.115 - 224)]/2

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To have the greater perimeter, we need the larger value of c, thus we will use the positive sign and ignore the negative one ;

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c = 8.604 + 4.246 = 12.85

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After having done this on paper:

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