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3 years ago

Plz help me algebra 2

Mathematics

1 answer:

Vinil7 [7]3 years ago

4 0

9514 1404 393

Answer:

∠7 = 51°

∠8 = 129°

Step-by-step explanation:

All of the obtuse angles are congruent, as are all of the acute angles. The acute and obtuse angles are supplementary.

∠8 = ∠1 = 129°

∠7 = 180° -129° = 51°

_____

Additional comment

Technically, angles 1 and 8 are called "alternate exterior angles." As such, they are congruent. Angles 7 and 8 form a "linear pair." As such, they are supplementary.

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Step-by-step explanation:

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Answer:

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b) 90% Confidence interval: (67.56 ,91.24)

Step-by-step explanation:

We are given the following in the question:

Prices for sleeping bags has an approximately normal distribution.

We are given the following sample:

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