What is 8.4 x 10^-6 in standard notation ?
2 answers:
<h3>Answer: 0.0000084</h3>
There are 5 zeros between the decimal point and the '8'
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Explanation:
Move the decimal point 6 spots to the left to go from 8.4 to 0.0000084
There are 5 zeros between the decimal point and the '8'. Each zero digit mentioned represents one move to the left. That sixth move is due to the '8' itself.
Check out the diagram below.
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Answer:
-675
Step-by-step explanation:
The sum can be broken into parts that you know. Here, one of those parts is the sum of numbers 1 to n. That sum is given by n(n+1)/2.
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Another way to do this is to realize the sequence of numbers is an arithmetic sequence with a first term of 65 and a last term of 67-2·75 = -83.
The sum of an arithmetic sequence is found by multiplying the number of terms by their average value. Their average value is the average of the first and last terms.
The average value of those 75 terms is (65 +(-83))/2 = -9, so their sum is ...
75(-9) = -675
Answer:
6 meters.
Step-by-step explanation:
The scale of a map is 1:10000
The real distance between two banks is 600 meters.
We are to find the distance between the two banks on the map.
This scale means that for every 1 meter on the map there are 10,000 meters on the real world.
So 600 meters on the real world would be represented by;
Cross-multiplying gives:
meters.