how do you do scientific notation? if you can please help me example 0.93 have to change to standard form!?

Answer 1

cant u be more clear??

Answer 2

To change a number to scientific notation:

If the number is bigger than 10, divide by ten as many times as needed to bring the number below 10 (and count the number of times you divided by ten).

Then, your number is the result, multiplied by 10 raised to the power of the number of divisions.

e.g., 34,522
divided by 10 = 3,452.2
divided by 10 = 345.22
divided by 10 = 34.522
divided by 10 = 3.4522

34,522 = 3.4522 x 10^4 (where ^ indicates that 10 is raised to a power); once you see that 10^4 = 10,000, you will realise that
34,522 = 3.4522 x 10,000 = 3,4522 x 10^4.

A quicker way of doing the same thing is to "move" the decimal point. In the number 34,522, the decimal point is not shown; however it is there, after the second 2.

You move it to the left until you are left with a number less than 10:
34,522
3,452.2 x 10
345.22 x 10^2
34.522 x 10^3
3.4522 x 10^4

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If the number is smaller than 1, you multiply by 10 until the number is bigger than 1 (and count the number of times you multiplied); or you move the decimal point to the right.

Here, the power of 10 is negative.

e.g., 0.93 = 9.3 x 10^-1 (which means 9.3 x (1/10))

If the number had been 0.0021:
0.0021
0.021 x 10^-1
0.21 x 10^-2
2.1 x 10^-3
which is the same as saying 2.1 divided by a thousand.

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The advantage of scientific notation is when multiplying or dividing many numbers that are very large of very small, taking advantage of the exponent rule (when multiplying the same number raised to different powers, you simply add the powers)

Answer 3

0.93 is 9.3x10^-1

Standard form means reducing the number to just one digit left of the decimal point. So 540348, for example, becomes:

5.40348x10^5

The number is always times ten to the power something. The power is the number of digits in the number minus one. It can also be negative, like with 0.93, but the same rules apply.

Answer 4

Move the decimal place until it reaches behind the first significant number. Count the number of places you move the decimal place. If the decimal moves right, negative. If decimal moves left, positive.

0.93 = 9.3 x 10^-1
20000 = 2.0 x 10^4

Answer 5

okay, scientific notation is simple if you know the rules.

going from sci to standard:

positive powers, add the number of zeros that the exponent is.
negative powers, move the decimal point backwards the number of places that the negative power is.


from reg to sci:
move the decimal point over so that it is between 0 and 10, then make it times ten to the (however many decimal places you moved) power. If you move right, it's a negative exponent. If you move left, it's a positive exponent.



email me if you don't get it.

Answer 6

In your question your number is a decimal so you would move the decimal point one space to the right so it is 9.3 and then you multiply by 10^-1 so it is 9.3X1o^-1. On the other hand, if you want to convert big numbers into sci form move the decimal point to the left eg. 1090= 1.09X10^3.

hope it helps ^^

Answer 7

Just multiply the number and add the exponents of power 10... It is: 1. (7.1 x 10^3) ( 2.5x 10^2) = 17.75*10^5 2. (6.23 x 10^-5) (4x 10^-3) = 24.92 * 10^-8 3. (5 x 10^-3) (7 x 10^4) = 35 * 10^1 4. (24.1 x 10^6) (1.2 x 10^-6) = 28.92 * 10^0 = 28.92 OK!

Answer 8

93 over 100

Answer 9

0.93 = 9.3 x 10^-1

Answer 10

in your example, 9.3*10^-1
or .50,000,000 to 5*10^7