Round 776644 to the nearest thousand

776644 rounds to 777000    

Step-by-step explanation:

hundred thousand  ten thousand  thousand  hundred   tens  ones

 7                                   7                     6                6              4      4

We are rounding to the nearest thousand so we are rounding the first 6.  We need to look at the next 6 (the one in the hundreds place)  6>=5 so we will round the 6 in the thousands place up to 7

776644 rounds to 777000              

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

could u provide us some answer choices or hmm idk maybe a table for us to anser with ? ?