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3 years ago

Solve the inequality 4y + 3 > 2y + 14

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

9514 1404 393

Answer:

y > 11/2

Step-by-step explanation:

Subtract 2y+3 to get the variable term alone on one side.

2y > 11

y > 11/2 . . . . . . divide by the coefficient of y

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3 years ago

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3 years ago

Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

<em>x</em> = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

3 0

3 years ago

Need help due in 25 minutes

masha68 [24]

Answer:

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Step-by-step explanation:

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3 years ago

Find the missing length of the triangle. a= ? b=4 c=12 1/3

Llana [10]

Answer:

a = 12.93

Step-by-step explanation:

Convert to decimal: 12 1/3 = 12.3

Pythagoras (a^2 = b^2 + c^2):

4^2 = 16

12.3^2 = 151.29

16+151.29 = 167.29

a = √167.29

a = 12.93 (rounded to two decimal places)

3 0

3 years ago

Solve the inequality 4y + 3 > 2y + 14​

Solve the inequality 4y + 3 > 2y + 14