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Ivahew [28]
3 years ago
12

-6(x + 7) = -4x - 2

Mathematics
2 answers:
almond37 [142]3 years ago
5 0

Answer:

one

Step-by-step explanation:

-6x -6×7 = -4x-2 :

-6x -42 = -4x -2 : (+4x)

-2x -42 = -2 : (+42)

-2x = 40 (/-2)

x = -20

Wittaler [7]3 years ago
4 0

Answer:

-2x-44

Step-by-step explanation:

-6x-42=-4x-2

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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In a statistics mid-term exam graded out of 100 points, the distribution of the exam scores was bi-modal with a mean of 70 point
Mnenie [13.5K]

Answer:

Step-by-step explanation:

Assuming a normal distribution for the distribution of the points scored by students in the exam, the formula for normal distribution is expressed as

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Looking at the normal distribution table, the corresponding z score is 0.99865

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