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Igoryamba
3 years ago
8

0.0000003105 in scientific notation

Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0

Answer:

3.015*10^{-7}.

Step-by-step explanation:

Given  : 0.0000003105 .

To find : Write in scientific notation.

Solution : We have given 0.0000003105.

Steps to write in scientific notation :

Step 1 : If a number has n digit we move decimal point ( n-1) place to left

 and to balance , multiply by 10^{n-1}  .

We can write 0.0000003105 as \frac{3105}{10000000000}.

Or \frac{3105}{10^{10}}.

\frac{3.015*10^{3}}{10^{10} }.

\frac{3.015}{10^{7} }.

3.015*10^{-7}.

Therefore, 3.015*10^{-7}.

Darina [25.2K]3 years ago
4 0
3.105 x 10 ^-6 because you are moving the decimal point back the exponent becomes negative
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WORTH 19 POINTS!!
marta [7]
You have to make a cos graph that starts its minimum and of -2, has an amplitude of 10, a period of 10 and  a maximum of 18.
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lets start of with a regular cos(x) graph.  This starts on its maximum instead of minimum so we have to multiply it by -1 to get -cos(x) which does start on its minimum.

-cos(x) has an amplitude of 1 instead of 10, to fix that we multiply it by 10 to get -10cos(x) which has an amplitude of 10.
 
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-10cos((π/5)x) has a minimum of -10 and maximum of 10 instead of a minimum of -2 and maximum of 18, to fix this we add 8 to -10cos((π/5)x) to get -10cos((π/5)x)+8 which does have a minimum of -2 and maximum of 18.

Therefore the answer is y=-10cos((π/5)x)+8. x being time in minutes and and y being the height in feet.  

I hope this helps.  Let me know if anything is unclear.
8 0
3 years ago
What is the ordered pair after this point is reflected across the y-axis? 4,2
Zepler [3.9K]

Answer:

-4,2

Step-by-step explanation:

a reflection across the y axis means the y values stay the same and the x values change sign

8 0
2 years ago
Its multiple choice so its easier please help me!
Levart [38]

Answer:

1st: positive strong

2nd: none

3rd:negative strong

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2 years ago
Using 8(-20) in a real world situation
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Maybe, the price went down $20 eight times?
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2 years ago
2 Points
sergeinik [125]

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