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Alexandra [31]
3 years ago
7

What numbers are perfect numbers

Mathematics
1 answer:
alekssr [168]3 years ago
5 0
A perfect number is a number where the sum of its divisors is equal to the number.

For example 6: 1 + 2 + 3 = 6

Another example is 28: 1 + 2 + 4 + 7 + 14 = 28

Here is a short list of perfect numbers: 6, 28, 496, 8128, <span>33550336, and the numbers get way bigger as we go on.</span>

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3 years ago
What is the product 4n/4n-4 n-1/n+1
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3 years ago
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2 years ago
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andreyandreev [35.5K]

Answer:

x = 12

Step-by-step explanation:

First you figure out which function your going to use. I notice that from the angle we have 5 which is the opposite side and 23 which is the adjacent side. This means we have to use tangent.

Then set up your equation: tan(x)=5/23. This is because the opposite side is 5 and the adjacent is 23 and it must be set up in that order.

Next get x alone by making the equation: x=tan^-1(5/23).

Then put it into the calculator and round to get 12.

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3 years ago
Kristen invested $1,800 in an account paying 6.5% simple interest. After 5 years, what is the balance of her account?
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Answer: 2,385

Step-by-step explanation:

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