Question

express 142 in scientific notation. ?×10^ enter the coefficient in the green box and the exponent in the yellow box.

Explanation:

Step1: Recall scientific notation rules

Scientific notation is in the form \( a \times 10^n \), where \( 1 \leq |a| < 10 \) and \( n \) is an integer.

Step2: Rewrite 142 in scientific notation

To get \( a \) between 1 and 10, we move the decimal point two places to the left: \( 142 = 1.42 \times 10^2 \).

Answer:

The coefficient (green box) is \( 1.42 \) and the exponent (yellow box) is \( 2 \). So in the form \( [1.42] \times 10^{[2]} \), the coefficient is \( 1.42 \) and the exponent is \( 2 \).