write 718.5 in scientific notation
7.185 * 10 ^ 2
7.185 x 10^2
because you move the decimal 2 spots to the left
To write 718.5 in scientific notation, follow these steps:
Step 1: Move the decimal point to the right of the first non-zero digit and count the number of places you moved it. In this case, the decimal point is already after the first non-zero digit, so there is no need to move it.
718.5
Step 2: Determine the exponent. The exponent is equal to the number of places you moved the decimal point. Since we didn't move the decimal point, the exponent is 0.
Step 3: Write the number in the form of x (a decimal number between 1 and 10) multiplied by 10 raised to the power of the determined exponent.
In this case, the number is 7.185 (after removing the trailing zero) and the exponent is 0.
Therefore, 718.5 in scientific notation is written as:
7.185 x 10^0
To write 718.5 in scientific notation, follow these steps:
Step 1: Determine the coefficient.
The coefficient in scientific notation is a number between 1 and 10. To find the coefficient, we divide the given number by 10 raised to the power of its decimal places.
In this case, 718.5 has one decimal place. So, divide 718.5 by 10^1 (10 raised to the power of 1):
Coefficient = 718.5 / 10^1 = 71.85
Step 2: Determine the exponent.
The exponent represents the power of 10 in scientific notation. For a positive exponent, the decimal point moves to the right, and for a negative exponent, the decimal point moves to the left.
In this case, since we divided by 10^1, the decimal point moved one place to the left. So the exponent will be -1.
Step 3: Combine the coefficient and the exponent.
Now, we have the coefficient and the exponent:
718.5 can be written in scientific notation as 7.185 x 10^-1