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Anton [14]
3 years ago
7

What is the solution to this equation 8y minus 2 equals negative 18

Mathematics
1 answer:
EleoNora [17]3 years ago
3 0
8y - 2 = - 18
8y = - 16
y = - 2

i am a mathematics teacher. if anything to ask please pm me
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2 years ago
Find the equation of the line perpendicular to the line x=9 that passes through the point (9,-1)
tia_tia [17]

Answer:

y = -1

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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jonny [76]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. Th
e-lub [12.9K]

Answer:

95% of monthly food expenditures are between $110 and $190.

Step-by-step explanation:

Given : The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. The sample mean is $150 and the standard deviation is $20.

To find : Using the Empirical rule, about 95% of the monthly food expenditures are between which of the following two amounts?

Solution :

At 95% of the data is between two standard deviation to left and right of the mean is given by,

To the left side, \bar{x}-2\sigma

To the right side, \bar{x}+2\sigma

We have given,

The sample mean \bar{x}=\$150

The standard deviation \sigma=\$20

Substitute in the formula,

\bar{x}-2\sigma

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\bar{x}+2\sigma

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=150+40

=190

Therefore, 95% of monthly food expenditures are between $110 and $190.

6 0
3 years ago
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