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natita [175]
3 years ago
6

The sum of two irrational numbers is rational

Mathematics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:The sum of two irrational numbers, in some cases, will be irrational. However, if the irrational parts of the numbers have a zero sum (cancel each other out), the sum will be rational.

Step-by-step explanation:

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Help center of circle
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Answer:

Center = (7, - 5)

Radius = 3

Step-by-step explanation:

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3 years ago
if you deposit $8000 into an account paying 9% annual interest compunded semi anually how long will it take for your money to do
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Answer:

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Step-by-step explanation:

#First we determine the effective annual rate based on the 9% compounded semi annual;

i_m=(1+i/m)^m-1\\\\=(1+0.09/2)^2-1\\\\=0.09203

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

A=P(1+i)^n\\\\A=2P, i=i_m\\\\16000=8000(1.09203)^n\\\\2=1.09203^n\\\\n=\frac{log \ 2}{log \ 1.09203}\\\\=7.87324\approx7.87 \ yrs

Hence, it takes 7.87 years for the principal amount to double.

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A≈314.16 have a good day :)
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