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3 years ago

Please help as soon as possible and show work if needed if so then show please.

Mathematics

2 answers:

Lena [83]3 years ago

8 0

Answer:

J)112

Step-by-step explanation:

To get your answer for the measure of the angle PMN, add 90 and 22 together to get your answer, 112.

I hope this helps!!!

vodka [1.7K]3 years ago

4 0

Answer:

99 + 22 = 112 degrees

Step-by-step explanation:

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Evaluate 4x-6y when x=-3 y=-1

pogonyaev

Answer:

First we substitute

4(-3) - 6(-1)

-7 -6

-13

Step-by-step explanation:

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2 years ago

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A gardener wants to know if soaking seeds in water before planting them increases the proportion of seeds that germinate. To inv

juin [17]

Answer:

d. I and III only

Step-by-step explanation:

I. The seeds should be randomly assigned to a treatment.

III. The number of successful seeds and unsuccessful seeds in each group should be at least 10.

The distribution of difference between two sample proportions :

Given :

Proportion 1 = P1 ;

Proportion 2 = P2 ;

Sample assignment for both samples 1 and 2 into the different treatment groups should be randomized, that is a simple random sampling of subjects into the treatment and control group. The sample design for difference between two sample proportions should be independent.

Finally each of the two proportions P1 and P2 should record a minimum of 10 successes and 10 non - successful Occurrences.

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3 years ago

Choose all the numbers that are common multiples of 12 and four

irina [24]

Answer:

12, 24 , and 36

Step-by-step explanation:

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2 years ago

31.8 miles/hr= ? Feet/sec

PSYCHO15rus [73]

1 mi = 5280 ft
1 h = 3600 s

therefore:

$31.8\ \dfrac{mi}{h}=31.8\cdot\dfrac{5280}{3600}\ \dfrac{ft}{s}=46.64\ \dfrac{ft}{s}$

Answer: 31.8 mi/h = 46.64 ft/s

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3 years ago

Suppose you were to draw all possible samples of size 36 from a large population with a mean of 650 and a standard deviation of

Lady_Fox [76]

Answer:

By the Central Limit Theorem, it is approximately normal with mean 650 and standard deviation 4.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes 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.

Mean of 650 and a standard deviation of 24.

This means that $\mu = 650, \sigma = 24$ .

Sample of 36:

This means that $n = 36, s = \frac{24}{\sqrt{36}} = 4$

What is the shape of the sampling distribution you would expect to produce?

By the Central Limit Theorem, it is approximately normal with mean 650 and standard deviation 4.

7 0

2 years ago