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igomit [66]
3 years ago
10

Need help with this

Mathematics
2 answers:
cupoosta [38]3 years ago
7 0

a²+b² = c² where a and b are legs and c is the hypotenuse

So...

a²+4²=13²

a²+16=169

a²=153

a=√153

answer: approx. 12.37 units

WITCHER [35]3 years ago
5 0

The equation would be a^ + 4^ = 13^

First we need to bring the numbers to the second power, 4 to the second would be 16, 13 to the second power is 169.

Then we subtract 16 from 169, which equals to 153.

Then we "square root" the 153 because of the 2nd power on top of the a

The correct answer would be 12.4

I hope this helps :)

STAY SAFE!! :D

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vampirchik [111]
Answer:
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Explanation:
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Hope this helps :)

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(100) points!!!! Help please
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Answer:

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Step-by-step explanation:

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The problem describes Georgie took 275 mg of the medicine for her cold in the first hour and that in each subsequent hour, the amount of medicine in her body is 91% (0.91) of the amount from the previous hour. It can be written as

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a)

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\displaystyle a_n=275\ .\ 0.91^{n-1}

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\boxed{\displaystyle a_8=142,11\ mg}

6 0
3 years ago
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