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Naily [24]
4 years ago
15

Solve the compound inequality. Graph the solution -2 ≤ 2x – 4 < 4

Mathematics
1 answer:
Ulleksa [173]4 years ago
5 0
-2 \ \textless \ = 2x - 4 \ \textless \  4 

-2+4\ \textless \ 2x\ \textless \ 4+4&#10; &#10;  Add \ 4 \ to \ the \ whole \ equation 

&#10;2\ \textless \ 2x\ \textless \ 8&#10; &#10;  Simplify \ inequality 

1\ \textless \ x\ \textless \  \dfrac{8}{2} Divide \ the \ whole \ equation \ by \ 2 

&#10;1\ \textless \ x\ \textless \ 4&#10; &#10; = (1,4)
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The answer is 106 dollars
8 0
4 years ago
sally has scores of 88, 92, 80, and 96. find the score she must make on the next exam to have an average of 90
melisa1 [442]
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3 0
3 years ago
Children of mothers who smoked during pregnancy scored nine points lower on intelligence tests at ages three and four than child
eduard

Answer:

All of the options apply.

Step-by-step explanation:

In the example given in the question, it is stated that mothers' smoking during pregnancy can affect childs' IQ and can cause lower scores on test.

All of the given options can be given as evidence for the link between smoking and lower IQ. The diet especially throughout childhood has significant effect on the development of the brain and the prefrontal cortex.

The psychological condition that the child is in, the environment in the house that he/she grows up in affects the IQ and the EQ.

The IQ can be affected by outside factors but it also has a relation with the genes that the child takes from his/her parents.

The socioeconomic status of the mother can affect the environment that the child grows up in, the people he/she interacts with and the opportunities that he/she gets to stimulate the brain in different ways to encourage growth.

I hope this answer helps.

8 0
3 years ago
The mean survivial time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years. Based on a parti
frutty [35]

Answer:

The time the patient expected to survive after diagnosis is 29 years.

Step-by-step explanation:

It is provided that the mean survival time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years.

That is,

\mu=15\\\sigma=5

An individual's predicted survival time is <em>a</em> = 2.8 standard deviations beyond the mean.

Compute the time the patient expected to survive after diagnosis as follows:

X=\mu+a\sigma

    =15+(2.8\times 5)\\\\=15+14\\\\=29

Thus, the time the patient expected to survive after diagnosis is 29 years.

5 0
3 years ago
A rectangle has an area of 822.4 square miles and a base of 32 miles. What is the height?
JulijaS [17]
I believe it would be 25.7 miles. I just divide 822.4 by 32.
4 0
3 years ago
Read 2 more answers
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