3 years ago

LETTERS How many permutations are possible of the letters in the word numbers?

Mathematics

2 answers:

Temka [501]3 years ago

8 0

the answer is 5 hope it helps

Sonbull [250]3 years ago

6 0

Answer: 5040

Step-by-step explanation:

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3 years ago

The angle measurements in the diagram are represented by the following expressions.

Rina8888 [55]

Answer:

since those 2 lines are parrelel that means the angles are the same so

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1 year ago

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What is the average amount of salt called for in each ?

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3 years ago

HELP!!<br> This is for my geometry exam and i don’t understand <br> please help

rusak2 [61]

Answer:

Step-by-step explanation:

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2 years ago

A quiz consists of 40 multiple choice questions, each with five possible answers, only one of which is correct. If a student g

Artist 52 [7]

Answer:

8 and 2.529

Step-by-step explanation:

The computation of the mean and the standard deviation is shown below:

Given that

Total number of questions is n = 40

The Probability of correct answer is p = $\frac{1}{5}$

So, the probability of the wrong answer is q = $1 - \frac {1}{5}$ = $\frac{4}{5}$

Moreover, this is the binomial distribution

Based on the above information

The mean is

$= n \times p$

$= 40\times \frac{1}{5}$

= 8

Now the variance is

$= 40\times \frac{1}{5} \times \frac{4}{5}$

= $\frac{32}{5}$

So, the standard deviation is

$= \sqrt{\frac{32}{5} }$

= 2.529

hence, the mean and the standard deviation is 8 and 2.529 respectively

6 0

3 years ago