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jolli1 [7]
3 years ago
14

3. Solve for m:

Mathematics
2 answers:
torisob [31]3 years ago
7 0

The answer has to be A.

___________________

Elena L [17]3 years ago
7 0

Answer:

c

Step-by-step explanation:

-7m+3=-7m+m+4

m=3-4

m=-1

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Micah buys 10 pens for every 2 pencils. Rachel buys 12 pens for every 3
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Answer:

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Step-by-step explanation:

micah

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rachel

12: 3

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In a large population, 82% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
anzhelika [568]

Answer:

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For proportions, the mean is \mu = p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

In this problem, we have that:

p = 0.82, n = 225.

So

\mu = 0.82

s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.82*0.18}{225}} = 0.0256

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

7 0
3 years ago
Read 2 more answers
How do I find the area of each shape
Ad libitum [116K]

Answer: the formula is (A=bh1/2)


Step-by-step explanation: #4 (The triangle)

First let’s find the base length of the triangle.

28 - 16 = 12

Ok now let’s do the real math now

Area  = bh1/2

Area = (12)(16)(1/2)

Area = 96

Don’t worry about the slant height it’s just there to trick you  




8 0
4 years ago
Pls Solve This! I'll give Brainilest and points! :D
Kruka [31]

Answer:

(8,3)

Step-by-step explanation:

because its ON the line and the line is dotted. if the line was solid it would be a solution but it is not because the line is dotted

4 0
3 years ago
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