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Which set of numbers is the positive root of the given number NOT a member?
Negative numbers.
How do you multiply a negative number with a positive fraction?
Any negative multplied to a positive is ALWAYS a negative answer, be it an integer or a fraction. Here is a table of multiplication/division of negative/positive numbers. X + = + X - = - X + = - X - = + If no sign is given before the numbers , then read it as positive (+). So (+) a X - b/c = - ab/c . (Note the negative in the answer!!!!!!
Will the sum of two integers always be negative?
No. For example, 2 + 3 = 5 which is positive, and 2 + (-2) = 0 which is neither positive nor negative. Well, that completely discredits my 4th grade math book that said any number that is not negative IS positive. Therefore, zero is by default a positive number. However, the sum of two negative integers will always be negative. Adding a negative integer decreases the value of the result and given that both integers are negative implies that the sum will be negative. "Implies"? you say. Do you have no conviction? Cannot you say 'determines' when it is obvious? "not obvious"? you say, Then does that mean the sum of 2 negative numbers MIGHT not be negative? See, this is what happens when a 5th grade question is answered by someone with superior attitude.
Why does an equal sign stay the same with multiplying or dividing negative numbers?
when you have > or < and multiply/divide by a negative number the sign inverts because given 2 positive numbers a and b it's easy to see that |a|>|b| if and only if a>b, but given two negative numbers x and y it's also easy to see that |x|>|y| if and only if x<y, try and example: for positive numbers 4 and 5, |5|>|4| and 5>4 but with negatives -5 and -4: |-5|>|-4| and -4>-5. but this affects in no way the = sign because in the equality we don't have a term bigger than the other... it's like "both sides had the same value"
What is significance of correlation?
it shows any pattern that may emerge in any given set of date, this includes a positive or negative correlation. positive where a gradient goes from low to high negative where a gradient goes from high to low
