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3 years ago

HELP NOW PLEASE ASAP!!

Mathematics

2 answers:

algol [13]3 years ago

4 0

Answer:

The answer is D, your welcome

Sever21 [200]3 years ago

3 0

Answer:

The 2nd answer is correct.

Step-by-step explanation:

Between x = - 4 and x = - 1 the function is represented by a straight line (and is therefore lineair). Moreover, the value of y increases when moving to the right (and therefore the function is increasing).

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3 years ago

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Dima020 [189]

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3 years ago

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A laptop has a listed price of $681.98 before tax. If the sales tax rate is 6.5% find the total cost of the laptop with sales ta

Goryan [66]

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4 years ago

What us 708,569 rounded to the ten thousands

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3 years ago

The average age for a person getting married for the first time is 26 years (U.S. News and World Report, June 6, 1994). Assume t

leva [86]

Answer: 90% of people getting married for the first time get married before age of 31.13.

Step-by-step explanation:

Given : The average age ( $\mu$ ) for a person getting married for the first time is 26 years (U.S. News and World Report, June 6, 1994).

We assume that the ages for first marriages have a normal distribution with a standard deviation ( $\sigma$ ) of 4 years.

Let x be the age before that 90% of people getting married for the first time get married.

From z-table , the value corresponds to p-value of 0.90 is 1.28155.

Formula : $z=\dfrac{x-\mu}{\sigma}$

$1.28155=\dfrac{x-26}{4}\\\\ x-26=4\times1.28155\\\\ x-26=5.1262\\\\ x=5.1262+26=31.1262\approx31.13$

Hence, 90% of people getting married for the first time get married before age of 31.13.

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4 years ago