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1 year ago

Nonsense will be reported!!

Mathematics

1 answer:

Ainat [17]1 year ago

8 0

[8] The hypotenuses must be congruent, DE and IJ

HL is hypotenuse-leg, or where the hypotenuse and one leg are congruent.

Since we see a leg is congruent, to prove they are congruent with HL we will need to know that the hypotenuses are congruent.

[9] Another leg, AC and YX

LL is leg-leg. Since we have one leg, we will need the other leg to prove the triangles are congruent by LL.

[10] A leg, DE and E? or FE and E?

LA means leg-angle. The angles by point E are vertical angles, so they will be congruent. To finish prooving the congruence using LA we will also need a leg.

-> The question marks are because the letters are too blurry to read.

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2 years ago

Neil is a drummer who purchases his drumsticks online. When practicing with the newest pair, he notices they feel heavier than u

Fynjy0 [20]

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The probability of the stick's weight being 2.33 oz or greater is 0.0041 or 0.41%.

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Given:

Weight of a given sample (x) = 2.33 oz

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Standard deviation (σ) = 0.22 oz

The distribution is normal distribution.

So, first, we will find the z-score of the distribution using the formula:

$z=\frac{x-\mu}{\sigma}$

Plug in the values and solve for 'z'. This gives,

$z=\frac{2.33-1.75}{0.22}=2.64$

So, the z-score of the distribution is 2.64.

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2 years ago

Nonsense will be reported!!​

Nonsense will be reported!!