1. how is 0.00069 written in scientific notation? (1 point).
o 69x10--
06.9x104
o 0.69x107
0692104

Explanation:

When a number is written in scientific notation (representing the number using powers of base ten) it is expressed so that it contains a digit in the place of the units and all other digits after the decimal point, multiplied by the respective exponent.  

Then, the significant digits will be the digits that are before the power of ten.

In the case of  we have to move the decimal point to the right and the power of base ten will be equal to the spaces moved to the right:

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

trig 15.3 cos