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Vesna [10]
3 years ago
11

I need to know what the answer is!?

Mathematics
2 answers:
ivanzaharov [21]3 years ago
5 0

Answer:

\boxed{A. 2}

Step-by-step explanation:

<em>Hey there!</em>

Well we first need to solve the top part.

15 + 5 * 3

5*3 = 15

15 + 15 = <u>30</u>

<u />

3^2 + 6

3*3 = 9

9+6 =<u> 15</u>

<u />

Now we have 30 ÷ 15 = 2.

<em>Hope this helps :)</em>

ArbitrLikvidat [17]3 years ago
3 0

Answer:

2

Step-by-step explanation:

Use PEMDAS

First simplify the exponent (9)

Next multiply 5 and 3 (15)

Now add 15 and 15 (30)

Add 9 and 6 (15)

Lastly simply 30 by 15 (2)

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If the life in years of a television set is normally distributed with a mean of 36 years and a standard deviation of 8 years wha
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Answer:

The company should guarantee a lifetime of less than equal to 20.95 years so that less than 3% of the television sets fail while under warranty.    

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 36 years

Standard Deviation, σ = 8 years

We are given that the distribution of life of television sets is a bell shaped distribution that is a normal distribution.

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z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.03.

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Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 36}{8} =-1.881\\\\x = 20.952\approx 20.95  

Thus, the company should guarantee a lifetime of less than or equal to 20.95 years so that less than 3% of the television sets fail while under warranty.

3 0
2 years ago
4 less than 6x, cubed
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<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ You would write this as:

6x^3 - 4

<h3><u>✽</u></h3>

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➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

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Step-by-step explanation: yes

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Marissa jogged 5 miles on the first day.
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