Answer:
642,000,000,000,000,000,000,000 kg
Step-by-step explanation: Basically you are multiplying 6.42 by 100,000,000,000,000,000,000,000. That looks really intimidating but it is very simple. All you have to do is move the decimal 23 hops to the right. Moving it to the right makes the number big, were moving it to the left makes the number smaller. We want a bigger number because we are writing the number in standard notation. Right now it is in scientific notation form (scientific notation is used because it is easier and quicker to write than writing 21 zeros).
The answer is D I know that because I do this all the time
Answer:
its C
Step-by-step explanation:
thank me later
Answer:
Yes it is, since a has to be less than or equal to 0, and -5 is indeed less than 0.
Step-by-step explanation:
