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2 years ago

Is 9,13,16 a right triangle

Mathematics

1 answer:

Dvinal [7]2 years ago

5 0

We can check by using the

pythagorean theorem or a² + b² = c².

Substitute your values in for a, b, and c.

(9)² + (13)² = (16)²

~simplify

81 + 169 ≠ 256

81 + 169 is 250 but 16² is 256.

So, this in not a right triangle.

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Elena L [17]

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2 years ago

Help me with this please.

Flura [38]

Answer:

Step-by-step explanation:

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3 years ago

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umka21 [38]

Answer:

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Step-by-step explanation:

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Step 1: Divide the numbers

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Step 3: Simplify

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2 years ago

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2 years ago

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Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

x = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

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2 years ago