Answer:
Step-by-step explanation:
In order to convert 0.0004578, which is in decimal, to scientific notation, all we need to do in this case is to move our decimal point to the right till we arrive at the first number that is not a zero, and then eliminate all the zero.
In this case, we will have to move the decimal point 4 spaces to our right, which would mean our exponent would be negative. The number of decimal spaces we moved to our right would be the value of our exponent, which is -4 in this case.
Thus, we have:

Answer:
V=2c
Step-by-step explanation:
![\\[Looking at the relationship of the numbers in the table, we can see which ones will work right off the bat.]\\[Our first numbers are both zero, so we cant do anything significant there.]\\[Next row, however, we can start doing the process of elimination.]\\\left[\begin{array}{ccc}1&2\\2&4\\3&6\\4&8\\5&10\end{array}\right]\\ \\[After plugging in the formulas to see if they're true, the only one that works every time is V=2c.]\\[That is your answer.]](https://tex.z-dn.net/?f=%5C%5C%5BLooking%20at%20the%20relationship%20of%20the%20numbers%20in%20the%20table%2C%20we%20can%20see%20which%20ones%20will%20work%20right%20off%20the%20bat.%5D%5C%5C%5BOur%20first%20numbers%20are%20both%20zero%2C%20so%20we%20cant%20do%20anything%20significant%20there.%5D%5C%5C%5BNext%20row%2C%20however%2C%20we%20can%20start%20doing%20the%20process%20of%20elimination.%5D%5C%5C%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%262%5C%5C2%264%5C%5C3%266%5C%5C4%268%5C%5C5%2610%5Cend%7Barray%7D%5Cright%5D%5C%5C%20%5C%5C%5BAfter%20plugging%20in%20the%20formulas%20to%20see%20if%20they%27re%20true%2C%20the%20only%20one%20that%20works%20every%20time%20is%20V%3D2c.%5D%5C%5C%5BThat%20is%20your%20answer.%5D)
Answer:
B
Step-by-step explanation:

Answer:
90 mins, or 1 hr and 30 mins. 3/2 hours, which would simplify to 1 1/2?
Step-by-step explanation: