3 years ago

Help me solve this problem please

Mathematics

1 answer:

Drupady [299]3 years ago

3 0

Answer:

sorry im just answering this cuz need points

Step-by-step explanation:

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To divide using a model, which of the following are true? Select all that are correct.

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Answer:

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Step-by-step explanation:

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The lifetime of a certain brand of battery is normally distributed with a mean value of 8 hr and a standard deviation of 0.8 hr

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3 years ago

The answer is not A or B

Nat2105 [25]

Answer:

C) 4

Step-by-step explanation:

Arcs on one side of the diameter adds upto 180°.

Therefore,

$(2 + 17x) \degree + 54 \degree + 56 \degree = 180 \degree \\ \\ (2 + 17x) \degree + 110 \degree = 180 \degree \\ \\ (2+ 17x) \degree = 180 \degree - 110 \degree\\ \\ (2 + 17x) \degree = 70 \degree \\ \\ 2 + 17x = 70 \\ 17x = 70 - 2 \\ \\ x = \frac{68}{17} \\ \\ x = 4$