write each number in standard form. 14.2 trillion 1.4 ten - thousandths

Explanation:

Step1: Recall the value of a trillion

1 trillion = $10^{12}$

Step2: Convert 14.2 trillion to standard form

$14.2\times10^{12}=1.42\times10^{13}$

Step3: Recall the place - value of ten - thousandths

One ten - thousandth is $\frac{1}{10000}=10^{- 4}$

Step4: Convert 1.4 ten - thousandths to standard form

$1.4\times\frac{1}{10000}=1.4\times10^{-4}$

Answer:

14.2 trillion in standard form is $1.42\times10^{13}$; 1.4 ten - thousandths in standard form is $1.4\times10^{-4}$