12800 km is the diameter of earth.
here you go...
Original Number: 12,800
New Number: 1.2800
Remember, the notation is: a x 10b
a = 1.28
b = 4
Now the whole thing:
1.28 x 104
Check your work:
104 = 10,000 x 1.28 = 12,800
7 E8 = 7 x 10⁸ = 700,000,000
7 E-4 = 7 x 10⁻⁴ = 0.0007
(a) 51,100 kilometers.
(a) When converting from scientific notation to standard notation, split the equation.
When solving , begin by calculating .
Multiply this by '5.11', resulting in:
5.11 × 10000 = 51,100 kilometers.
(b) When converting from standard form to scientific notation, count the number of zeros until the first non-zero digit. Therefore:
In 0.00000768, the '7' is placed 6 digits from the decimal. Recall that for decimals, the exponent is negative. Therefore in scientific notation, this equals:
The standard form is
Given : Expression
To find : What is the number in standard form ?
Standard form is the way of writing a number in expanded or simpler form.
Remove decimal and open power of 10.
Therefore, The standard form is