2 years ago

How many whole number palindromes exist between 100 and 200?

Mathematics

1 answer:

DiKsa [7]2 years ago

8 0

there is between 100 and 110 ( = 101).

then we have 111, 121 etc up to 191

So that is a total of 10.

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Simplify: (7x^2 − 8x − 4) + (−2x^2 + 3x + 5) + (5x^2 − 10x − 8)

kramer

Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify

10x^2 - 15x - 7

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3 years ago

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Answer:

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2 years ago

nikitadnepr [17]

Answer:

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3 years ago

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rewona [7]

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Step-by-step explanation:

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3 years ago

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Question 18 Item 18 The distribution of the number of moths captured per night by a certain moth trap is approximately normal wi

juin [17]

Answer:

Standard deviation 46.3

Step-by-step explanation:

A 28% of the distribution is equivalent to a z score of -0.5828, you can use a z table to find that.

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$z = \frac{x-\mu}{\sigma}$

x is the number being evaluated

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σ is the standard deviation

And it is used to calculate how many standard deviations you are from the mean of the sample.

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3 years ago