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mixas84 [53]
3 years ago
14

Sketch the graph of each linear inequality y>-2x-2

Mathematics
2 answers:
andrezito [222]3 years ago
8 0
Here you go ooooo oooo

aleksklad [387]3 years ago
5 0

Answer:

it has a broken line segment because it is only has greater than sign not greater than or equal to

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Heated-treated parts are specified to have a hardness of at least 45 (lower specification limit). Any parts that are below 45 ar
Nataly_w [17]

Answer:

P(X

And we can find this probability using the normal standard table or excel and we got:

P(z

The figure shows the calculation for this case.

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

Let X the random variable that represent the hardness of a population, and for this case we know the distribution for X is given by:

X \sim N(48.5,2)  

Where \mu=48.5 and \sigma=2

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table or excel and we got:

P(z

The figure shows the calculation for this case.

5 0
3 years ago
What is the area of the yellow region? INEED HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!
True [87]

Answer:

A=¼πr²

=¼(3.142×5²)

=19.64 square miles

8 0
2 years ago
Please solve and show your work. Thank you! I will mark brainiest :)
Doss [256]

Answer:

x=22.5

Step-by-step explanation:

Make a ratio

The names of the triangle help with this.

AB is similar to FG, and AC is similar to FH (the missing side)

6/15 = 9/x

cross multiply

6x=135

divide both sides by 6

x=22.5

6 0
2 years ago
Read 2 more answers
Evaluate x2/y + x2/z for x = 6, y = -4, and z = -2.
8_murik_8 [283]

Answer:

-27

Step-by-step explanation:

6^2=36

36/-4=-9

36/-2=-18

-9+-18=-9-18=-27

7 0
3 years ago
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Explain why all squares must be rectangles but not all rectangles are squares
Neko [114]
A square is a quadrilateral with all four angles right angles and all four sides of the same length. ... Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. However not every rectangle is a square, to be a square its sides must have the same length.
5 0
2 years ago
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