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Marina CMI [18]
3 years ago
14

Which ordered pairs are solutions to the inequality 4x+y>−6?

Mathematics
2 answers:
lisov135 [29]3 years ago
4 0

Answer:

(2,0) , (4,-20) and (-1,-1)

Step-by-step explanation:

4x+y>-6

WE need to select an ordered pair that is solution to our inequality

Lets check with each option

(2,0) , plug in 2 for x  and 0 for y

4x+y>-6

4(2)+0>-6

8>-6 True

(−3, 6), plug in -3 for x  and 6 for y

4x+y>-6

4(-3)+6>-6

-6>-6 False

(4, −20) , plug in 4 for x  and -20 for y

4x+y>-6

4(4)-20>-6

-4>-6 True

(0, −9) , plug in 0 for x  and -9 for y

4x+y>-6

4(0)-9>-6

-9>-6 False

(-1, −1) , plug in -1 for x  and -1 for y

4x+y>-6

4(-1)-1>-6

-5>-6 True

Bingel [31]3 years ago
3 0
2,0 solution

-3,6no solution

4,-20 no solution

0,-9 no solution

-1,-1  solution
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Hello!!

When solving -\frac{1}{5} (x-25)=7, the correct sequence of operations would be...

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Health insurance benefits vary by the size of the company. The sample data below show the number of companies providing health i
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Answer:

Step-by-step explanation:

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Null Hypothesis, H0: The health insurance coverage is independent of the size of the company.

Alternative hypothesis, H1: The health insurance coverage is not independent of the size of the company

The test statistics is calculated as

X² =  <u>∑(Ei - Oi)²</u>  ≅X²(r-1)(c-1)

        i      Ei

where Oi's are the observed values and Ei's are the expected values,

E= <u>row total × column total</u>

            total

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No                              8             12          16           36

Total                      50    75                  100           225

Therefore, the test statistics is

X² =∑ (<u>Ei -Oi)² </u>=6.94 ≅  x²₂

      i       Ei

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The associated p-value is 0.031 (<0.05).

b. Percentage of employees lacking health insurance coverage is

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Medium 10/75 x 100 = 13%

Large 12/100 x 100 = 12%

Hence depending on the above percentage, we can support the claim that the employees of small companies are more likely to lack health insurance coverage.

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3 years ago
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