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snow_lady [41]
3 years ago
10

Factor this: a^n+a^n+1

Mathematics
1 answer:
NARA [144]3 years ago
4 0

Answer:

1 + 2 a^n

Step-by-step explanation:

You might be interested in
Need help
aleksandr82 [10.1K]

Using the normal distribution, the probabilities are given as follows:

a. 0.4602 = 46.02%.

b. 0.281 = 28.1%.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

The parameters are given as follows:

\mu = 959, \sigma = 263, n = 37, s = \frac{263}{\sqrt{37}} = 43.24

Item a:

The probability is <u>one subtracted by the p-value of Z when X = 984</u>, hence:

Z = \frac{X - \mu}{\sigma}

Z = \frac{984 - 959}{263}

Z = 0.1

Z = 0.1 has a p-value of 0.5398.

1 - 0.5398 = 0.4602.

Item b:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem:

Z = \frac{X - \mu}{s}

Z = \frac{984 - 959}{43.24}

Z = 0.58

Z = 0.58 has a p-value of 0.7190.

1 - 0.719 = 0.281.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

8 0
2 years ago
10 points if ur right and I’ll mark it:)
Ksenya-84 [330]

Answer:

Hello! May I ask what "Desmos" is??

Step-by-step explanation:

7 0
3 years ago
Enlarge shape a by 1/3 with the centre enlargement (3,-3) <br> (-9,9) (-9,6) (-3,6)
NemiM [27]

Answer:

0033

Step-by-step explanation:

.033 of a whole number so its .033

5 0
3 years ago
A study of a population of 1,080 frogs revealed that 15 out of every 180 frogs in the population have spots on their back. Based
avanturin [10]
I think it’s 990 maybe not I did 1080/180=6 then 15*6=90 then did 1080-90=990 I think
8 0
3 years ago
Find the value of x.
Gemiola [76]

Answer:

15

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
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