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sergey [27]
3 years ago
6

PLEASE HELP ILL MARK AS BRAINLIEST!!!! what is the specific name and degree of the following polynomials?

Mathematics
1 answer:
yaroslaw [1]3 years ago
3 0
Just scan it in photo math and boom there’s your answer
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Create an expression whose value will be 21 when x = -6
Svetach [21]
21=27+x 

If you replace x with -6 then your answer will be 21!! 
3 0
3 years ago
A charity receives 2025 contributions. Contributions are assumed to be mutually independent and identically distributed with mea
uysha [10]

Answer:

The 90th percentile for the distribution of the total contributions is $6,342,525.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

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 sums of size n, the mean is \mu*n and the standard deviation is s = \sqrt{n}*\sigma

In this question:

n = 2025, \mu = 3125*2025 = 6328125, \sigma = \sqrt{2025}*250 = 11250

The 90th percentile for the distribution of the total contributions

This is X when Z has a pvalue of 0.9. So it is X when Z = 1.28. Then

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

By the Central Limit Theorem

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

1.28 = \frac{X - 6328125}{11250}

X - 6328125 = 1.28*11250

X = 6342525

The 90th percentile for the distribution of the total contributions is $6,342,525.

3 0
3 years ago
The last question I need help on.
AleksAgata [21]

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.

8 0
3 years ago
Cot0 + tan0 = sec0csc0
Lelechka [254]

Answer:

??

Step-by-step explanation:

7 0
3 years ago
(6 + 5y)3<br> Multiply the algebraic expressions using a Special Product Formula, and simplify.
Kruka [31]

Hello.

The answer is: 15y+18

(6+5y)(3)

=(6+5y)(3)

=(6)(3)+(5y)(3)

=18+15y

=15y+18

Have a nice day

7 0
3 years ago
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