How do you write 4.2 x 10 to the 5th power in standard form?
420,000
To write 4.2 x 10 to the 5th power in standard form, you need to move the decimal point five places to the right since the exponent is positive.
Start with the number 4.2 and move the decimal point five places to the right to get 42,000.
Therefore, 4.2 x 10^5 in standard form is 42,000.