3 years ago

The first question Is it A B C, or D? Explain why

Mathematics

1 answer:

seropon [69]3 years ago

8 0

M AC= 2* m < ABC= 2* 24°= 48

this is the answer

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If you understand, please put the answer!

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Step-by-step explanation:

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2 years ago

The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha

matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

$\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{ = }\frac{710-850}{70} \\ \text{ = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}$ $\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}$

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

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1 year ago

Can’t figure out M<7/12 The options are A.1 B.-1 C.-9 D.-5

sladkih [1.3K]

M < 7 / 12

(1) < 7 / 12

(1) < 0.583333333 (false statement)

(-1) < 7 / 12

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(-9) < 7 / 12

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(-5) < 7 / 12

(-5) < 0.583333333 (true statement)

B C D maybe?

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2 years ago

What is the product of 8.4 times the quantity of 10 raised to the power of 7

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84,000,000 is the answer

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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