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zlopas [31]
2 years ago
7

Valuate the expression. Give your answer as a fraction in simplest form. 2/5 X 0.22

Mathematics
1 answer:
lesya692 [45]2 years ago
4 0

2/5 * 10 = 20/50

0.22 as a fraction 11/50

20/50 is the same as 40/100

11/50 is the same as 22/100

multiply

880/10000

which is 22/250

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Answer:

Side c = 10.35

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Step-by-step explanation:

The Law of Cosines states that:

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We are to to find side c, Angle A and B

side a = 14

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1) Side c

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c² = 14² + 18² - 2 × 14 × 18 Cos 35

c = √(14² + 18² - 2 × 14 × 18 Cos 35)

c = 10.3512

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2) Angle A

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A = arc cos (18² + 10.35² - 14²/2 × 18 × 10.35)

A = 50.8737°

A = Approximately = 50.87°

3) Angle B

Cos B = a² + c² - b²/2ac

B = arc cos (a² + c² - b²/2ac)

B = arc cos (14² + 10.35² - 18²/2 × 14× 10.35)

A = 94.13123°

A = Approximately = 94.13°

3 0
3 years ago
The chart shows rate of decay. A 3 column table with 7 rows. The first column is Half-lives elapsed, with entries 0, 1, 2, 3, 4,
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The value that is being measured in the columns labeled "Fraction remaining" and "Percentage remaining" is (d) amount of material that has not decayed.

From the question, we understand that the chart measures the rate of decay.

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So, the fraction remaining column would show the remaining amount of the material that is being measured, as a fraction.

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The percentage remaining column would show the remaining amount of the material that is being measured, as a percentage.

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Read more about decay rates at:

brainly.com/question/3072599

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Andrej [43]

Answer:

Step-by-step explanation:

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