3 years ago

Please help me with this

Mathematics

1 answer:

Gemiola [76]3 years ago

6 0

Answer:

Step-by-step explanation:

Gabriela has solved incorrectly. 5 should distributed to 9x & (-8) and 4 should be distributed between x & 2

5(9x - 8) = 4*(x + 2)

5*9x - 5*8 = 4*x + 4*2

45x - 40 = 4x + 8

Subtract 4x from both sides

45x - 4x - 40 = 8

41x - 40 = 8

Add 40 to both sides

41x = 8 + 40

41x = 48

x = 48/41

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Yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. he finds the mean is 14. his steps for

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