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sladkih [1.3K]
3 years ago
11

What is 0.000000089 written in scientific notation?

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
6 0
I hope this helps you




0,000000089



89/1000000000



89/10^9


89.10^-9


8,9.10^-10


0,89.10^-8
hram777 [196]3 years ago
5 0
8.9x10^-8 is the correct answer
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Answer:

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Step-by-step explanation:

Here we have a system of 3 equations with 3 variables:

4*x + 2*y + 1 = 1

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The first step to solve this, is to isolate one of the variables in one of the equations, let's isolate "y" in the second equation:

2*x - y = 1

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Now, in the first equation we have only the variable x, so we can solve that equation to find the value of x:

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8*x = 1 + 1 = 2

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Now that we know the value of x, we can replace this in the other equation to find the value of z.

7*(1/4) -3 + z = 1

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Now we can use the equation y = 2*x - 1 and the value of x to find the value of y:

y = 2*(1/4) - 1

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y = 1/2 - 1

y = -1/2

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Answer:

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Step-by-step explanation:

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