The scientific notation is negative if the number itself is negative and not otherwise.
Thus the scientific notation for -2500 is -2.5*103.
Perhaps what you were thinking was when the exponent, or power of 10, is negative. This is negative when the magnitude of the "ordinary" number is smaller than 1.
Thus 0.25 = 2.5*10-1
So, if the number itself is less than 0 and its magnitude is less than 1 (ie -1 < x < 0), then both are negative.
For example, -0.0025 = -2.5*10-3
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Examples: -- up and down, but not sideways or forward and backward -- forward and backward, but not sideways or up and down -- left and right, but not forward and backward or up and down
The answer is 10 steps.
The adjective is redder (it spells the same forward and backward, as do radar and racecar).
Your head,neck,and hip.:)
The answer to this is a little counterintuitive. positive X positive = positive negative X positive = negative positive X negative = negative negative X negative = positive Do you see the pattern? Two positives and two negatives will always be positive. Think of yourself standing on a number line. If you're a positive number you will be facing to the right. If you are multiplied by a positive number you will move to the right (positive). If you are negative number, you will be facing to the left, but when multiplied by a negative number you have to move backwards, which is now to the right--a positive number! Think of yourself as always facing right when a positive number and facing left when a negative number and then go forward or backward with the next number.