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MatroZZZ [7]
2 years ago
6

How do I write Domain of an inequality

Mathematics
1 answer:
Katen [24]2 years ago
4 0

Answer:As an inequality, we would write Read as "the domain of the function is all values of x which are greater than or equal to zero". For more on inequalities see Inequalities. In so-called interval notation, the same function has a domain of This describes the set of values from 0 to positive infinity.

Step-by-step explanation:

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Is 14 a solution for the equation -5 + 2x = 23? Explain.
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Answer:

Yes because after solving the equation, x does indeed equal 14.

Step-by-step explanation:

-5 + 2x = 23

2x = 23 + 5

2x = 28

x = 14

8 0
3 years ago
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A jar contains 8 red marbles, 10 blue marbles, and 2 yellow marbles. One marble is chosen at random. The color is recorded in th
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blue is more likely to be chosen because there are more of them than the other colors

Step-by-step explanation:

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3 years ago
Since the area under the normal curve within two standard deviations of the mean is 0.95, the area under the normal curve that c
alukav5142 [94]

Answer:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

For this case if we define the random variable of interest X and we know that this random variable follows a normal distribution:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

5 0
3 years ago
Find the value of Y helpppp
DIA [1.3K]

Answer:

y = 4

Step-by-step explanation:

Both the triangles are congruent by SSS postulate.

Therefore,

4y + 8 = 24 \\ (corresponding \: sides \: of \:  \\ congruent  \:  \triangle s) \\ 4y = 24 - 8 \\  \\ 4y = 16 \\  \\ y =  \frac{16}{4}  \\  \\ y = 4

3 0
3 years ago
Prove that :
Dimas [21]

Answer:

<h3>Question 1</h3>
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6 0
3 years ago
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