SOLUTION: Write the following numbers in scientific notation:
Number in standard notation Number in scientific notation
1,990,000,000,000,000,000,000,000,000,000
48,500
3,756
980
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Question 181896: Write the following numbers in scientific notation:
Number in standard notation Number in scientific notation
1,990,000,000,000,000,000,000,000,000,000
48,500
3,756
980
72
6.5
0.432
0.0999
0.005
0.00012
0.00000000000000000000000000000091093897
Insight: The following are simplified procedures for writing a number in scientific notation and reverse:
To Write a Number in Scientific Notation
1. Move the decimal point in the original number to the right or left until you obtain a number greater than or equal to 1 and less than 10.
2. Count the number of places you have moved the decimal point to obtain the number in step 1. If the decimal point was moved to the left, the count is to be considered positive. If the decimal point was moved to the right, the count is to be considered negative.
3. Multiply the number obtained in step 1 by 10 raised to the count found in step 2. (Note that the count determined in step 2 is the exponent on the base 10.)
Examples:
- Males have up to 5,800,000 red blood cells per cubic millimeter of blood, or
5,800,000 =
- The probability of winning a lottery may be 0.0000018, or
0.0000018 =
To Convert a Number given in Scientific Notation to Decimal Notation
1. Observe the exponent on the 10
2. a) If the exponent is positive, move the decimal point in the number to the right the same number of places as the exponent. Adding zeros to the number might be necessary.
b) If the exponent is negative, move the decimal point in the number to the left the same number of places as the exponent. Adding zeros might be necessary.
Examples:
- The age of the earth is estimated to be years = 4,600,000,000 years
- The average grain size in siltstone is = 0.00135
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Write the following numbers in scientific notation:
Number in standard notation Number in scientific notation
1,990,000,000,000,000,000,000,000,000,000
= 1.99*10^30
Sometimes you see 1.99E30, too
------------------
48,500
3,756
980
72
6.5
0.432
0.0999
0.005
0.00012
0.00000000000000000000000000000091093897
= 9.1093897E-31
--------------
A better way to long ones like these on the computer is to copy the number, then count how many digits you have to delete to get to where the decimal point goes.
I did those 2, you try the others. email or repost if you want help or to check your answers.
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