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german
3 years ago
14

so a right triangle has a leg of length 15 and a hypotenuse of length 45 yards. Find the length of the other leg (nearest tenth)

​
Mathematics
1 answer:
elena-s [515]3 years ago
5 0

Answer:

42.42 yards

Step-by-step explanation:

<u>Given </u><u>:</u><u>-</u><u> </u>

  • A right triangle has a leg of length 15 yards and a hypotenuse of length 45 yards .

And we need to find the length of other leg. So since it is a right angled triangle we can use the Pythagoras Theorem which is ,

<u>Pythagoras</u><u> Theorem</u><u> </u><u>:</u><u>-</u><u> </u>

  • In right angle triangle sum of squares of two smallest sides that is base and perpendicular is equal to the square of the largest side that is hypotenuse .

<u>Using</u><u> Pythagoras</u><u> Theorem</u><u> </u><u>:</u><u>-</u><u> </u>

:\implies p² + b² = h²

:\implies 15² + p² = 45²

:\implies 225 + p² = 2025

:\implies p²= 1800

:\implies p = 42.42

<u>Hence </u><u>the</u><u> </u><u>measure</u><u> of</u><u> </u><u>other </u><u>leg </u><u>is </u><u>4</u><u>2</u><u>.</u><u>4</u><u>2</u><u> </u><u>yards.</u>

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If a = 2, b = 4 and c = 5, then what is the value of this expression? 5a + 3c - 2b
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Halloween Candy Halloween is Kelly's favorite holiday of the year! Based on experience, Kelly knows that on average, each house
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Using the <u>normal distribution and the central limit theorem</u>, it is found that there is an approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

Normal Probability Distribution

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

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  • By the Central Limit Theorem, for n instances of a normal variable, the mean is n\mu while the standard deviation is s = \sigma\sqrt{n}.

In this problem:

  • Mean of 4 candies, hence \mu = 4.
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The probability is the <u>p-value of Z when X = 122</u>, hence:

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By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{122 - 140}{3}

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Approximately 0% probability that the total number of candies Kelly will receive this year is smaller than last year.

A similar problem is given at brainly.com/question/24663213

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Ken uses 6 apples and 2 bananas to make a fruit salad. He put twice as many oranges as bananas in the salad. How many pieces of
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Answer:

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Step-by-step explanation:

Given:

Ken uses 6 apples and 2 bananas to make a fruit salad. He put twice as many oranges as bananas in the salad.

Now, to find the number of pieces of fruit Ken will use to make 2 fruit salads.

So, pieces of fruits use to make a salad are:

Apples = 6.

Bananas = 2.

Oranges = twice of bananas = 2×2=4.

So, total pieces of fruits to make a salad = 6+2+4=12.

Now, total pieces of fruits to make 2 fruit salads:

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Therefore, 24 pieces of fruits are use to make 2 fruit salads.

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