Question

An organism measures 2.9 x 10-5 centimeters in diameter. What is this number in standard notation?

A.)0.000029
B.)0.0029
C.)0.00029
D.)0.029

Answer 1

The measurement 2.9 x 10^-5 centimeters, when expressed in standard notation, is 0.000029. This demonstrates converting a number from scientific notation to standard notation by moving the decimal point to the left according to the negative exponent.

Step-by-step explanation:

The organism measures 2.9 x 10^-5 centimeters in diameter. To express this number in standard notation, we need to move the decimal point five places to the left, as indicated by the exponent -5 in scientific notation. Therefore, 2.9 x 10^-5 is equivalent to 0.000029 in standard notation.

To clarify the process:

1. Start with 2.9.
2. Since the exponent is -5, move the decimal point 5 places to the left.
3. Fill in zeros to the empty decimal places:

0.000029

This corresponds to choice A, demonstrating the conversion from scientific to standard notation.