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Does the line of best fit have to have a positive gradient?
Not at all. If the two variables have a negative correlation, that is as on increases the other decreases, then the line of best fit would have a negative gradient.
What is a layer in math?
A boundary layer in math is a region of very large values of the gradient of a certain function. It is also stated that a boundary layer has its origin in fluid dynamics.
Is anion is positive or negative?
negative. why is this question in math when it should be in chemistry?
How can you tell whether the sum of 71 and 43 is a positive or negative without actually finding the sum?
Well, honey, if you're adding a positive number with another positive number, the sum will be positive. So, in this case, 71 and 43 are both positive, so their sum will definitely be positive without needing to do the actual math. Math can be a real pain, but sometimes it's just that simple.
What is a positive difference in math terms?
When you subtract the smaller number from the larger number in the problem. The answer should always be positive.
