It is: 4.2*10^2 when in scientific notation
140 cm 1 meter = 100 centimeters 1 centimeter = 0.01 meter
An index fossil is formed from the remains of an animal that evolved and lived for a precisely defined (and hopefully short) period of time, they are used to define and identify geologic periods. The best index fossils are wide spread (globally) and numerous (commonly found). They frequently (but not always) bottom dwelling or burrowing organisms with hard parts to their body structure because such organisms are most likely to regularly leave remains that can be fossilized.
The glycemic index is used to measure how quickly ones blood sugar rises after eating food. The higher the food is in carbohydrates and or sugar, the more the index rises.
An IG Index is used in the United Kingdom. It is used for spread betting for a large range of financial markets. Ig Index is overseen by the Financial Services Authority.
Refractive Index(i) Refractive index of a medium is that characteristic which decides speed of light in it.(ii) It is a scalar, unit less and dimensionless quantity.(iii) Absolute refractive index :When light travels from vacuum to any transparent medium then refractive index of medium w.r.t. vacuum is called it's absolute refractive index i.e. vacuumµmedium = c/vAbsolute refractive indices for glass, water and diamond are respectively µg = 3/2 = 1.5, µw = 4/3 = 1.33 and µD = 12/5 = 2.4(iv) Relative refractive index :When light travels from medium (1) to medium (2) then refractive index of medium (2) w.r.t. medium (1) is called it's relative refractive index i.e. 1µ2 = µ2/µ1 = v1/v2 (where v1 and v2 are the speed of light in medium 1 and 2 respectively).(v) When we say refractive index we mean absolute refractive index.(vi) The minimum value of absolute refractive index is 1. For air it is very near to 1. ( 1.003)
"index" is the singular form - "indices" is the plural :)
The possessive form of the singular noun index is index's.
140/420 = 1/3
300/420 = 5/7
indices or indexes
The plural form for the noun index is indexes.
Expressed as a mixed number in its simplest form, 420%, or 420/100, is equal to 4 1/5 or four and one fifth.
Index form of 9765625 is 9.765625 × 106
40.000000 in standard index form is 4.0 × 101
5,200 in standard index form = 5.2 × 103
8890 in standard index form = 8.89 × 103
420 230