Question

is 73.4 x 10^5 in scientific notation?

Answer 1

7.34 x 10^6

Answer 2

yes; on computers/calculators appears as 74,3e5 or 7.43e6 in normalized scientific notation

Answer 3

the general formula for scientific notation is a * 10 ^ n where a is a number between 0 and 10, n can be a positive or negative whole number.

Answer 4

To find the correct scientific notation of a number, you simply move the decimal point until the number is between 0 and 10.

Answer 5

For say, one million you would do this.

1,000,000.
Move the decimal left 6 places.
1 x 10^6

For 1 millionth- ( I think that's a millionth)
.0000001
Move the decimal 6 places to the right
1 x 10^-6
Notice the negative on the six, because we were working with a number originally smaller than 1

Answer 6

What about 0.09 x 10^7
and 80 x 10^3
and also, 4.22 x 10^negative3

Answer 7

let me continue with the steps involved then you can always apply.

Answer 8

Here is the full question:

which of the following expressions is written in scientific notation?
A. 73.4 times 10^5
B. 0.09 times 10^7
C. 80 times 10^3
D. 4.22 times 10^negative3

Answer 9

the idea is not to change the value of the original number just to express it differently

to write the number in the general form if you move the decimal to the left you are dividing. count the number of places moved and multiply by 10 to that many places to keep the balance. Similarly if you move to the right you are multiplying so multiply by 10 to the negative of that many places moved to keep the balance.

remember the rules for exponents. when you multiply numbers with the same base add the powers, when you divide you subtract the powers. ( when you subtract you are adding a negative)

Answer 10

look at the example given by @1lorax2 above

Answer 11

the full question is asking which choice is written in the general form?

Answer 12

review my first post and choose the one in the right format

Answer 13

7.34*10^6---> yes, in scien.nota.

Answer 14

that is the exact question from the paper.. it confused me

Answer 15

@OKAstudent do you realize you have 2 questions now ? hopefully you can now recognize when a number is in scientific notation and also how to write a number in scientific notation

Answer 16

the question as written is fine. it just want you to recognize which was in the correct format.

Answer 17

rephrasing the question which choice is written as a * 10^n

Answer 18

are you ok now? what was your choice?