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mixas84 [53]
3 years ago
10

Please help me with this question

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

solve to find x= -4,2

plug them into the equation and the -4 gives you a negative solution, and 2 gives you a positive solution. Use the positive solution

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4th row will result in the greatest mean.

Step-by-step explanation:

We are asked to find the row with greatest mean from our given rows.

We will use formula \bar{x}=\frac{\Sigma x}{n}, where,

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Therefore, mean of 2nd row is 3.

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\text{Mean of row 4}=\frac{21}{5}

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Therefore, mean of 4th row is 4.2.

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