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3 years ago

Which inequality has the solution set shown in the graph?

Mathematics

2 answers:

irina1246 [14]3 years ago

7 0

Answer:

D. y<u>></u><u> </u>1

The shaded area on the graph is y>1 but since the line is solid it is also equal to 1.

pshichka [43]3 years ago

7 0

Answer:

y ≥ 1

Step-by-step explanation:

The given line is a horizontal line.

The equation of a horizontal line is y = a, where "a" is a constant.

Here the horizontal drawn at y = 1.

Therefore, the equation of line is y = 1

The solution is shaded above the line, therefore, it is y > 1

The line is a solid, therefore, the inequality that represents the solution is y ≥ 1

Answer: D) y ≥ 1

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3 years ago

A survey found that women's heights are normally distributed with mean 63.2 in. and standard deviation 2.4 in. The survey also

Effectus [21]

Answer: 99.51%

Step-by-step explanation:

Given : A survey found that women's heights are normally distributed.

Population mean : $\mu =63.2 \text{ inches}$

Standard deviation: $\sigma= 2.4\text{ inches}$

Minimum height = 4ft. 9 in.= $4\times12+9\text{ in.}=57\text{ in.}$

Maximum height = 6ft. 2 in.= $6\times12+2\text{ in.}=74\text{ in.}$

Let x be the random variable that represent the women's height.

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

For x=57, we have

$z=\dfrac{57-63.2}{2.4}\approx-2.58$

For x=74, we have

$z=\dfrac{74-63.2}{2.4}\approx4.5$

Now, by using the standard normal distribution table, we have

The probability of women meeting the height requirement :-

$P(-2.58$

Hence, the percentage of women meeting the height requirement = 99.51%

8 0

3 years ago

Help now fast..................................

Yuliya22 [10]

Answer:

Step-by-step explanation:

There are 6 units in the numberline, and 2 are shaded. So, 2/6 are shaded.

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2 years ago