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Some positive things about dams include (but are not limited to) the following:
* Provide protection against flooding
* Provide a mechanism to create electricity
* Provide a feeding-point for man-made bodies of water
Some negative things about dams include (but are not limited to) the following:
* Are expensive to build
* Are good targets for terrorist activity
* When compromised must be completely rebuilt
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Why is a negative number times a positive number always negative?
Take a simple multiplication question such as 2x3It mean that there are 2 groups and these groups each have 3 things in them (or 3 groups each with 2 things)So you add the groups up and get 6Now if you have 2x-3 you have 2 groups and they each have -3 things in them. You add all the negatives 3s up just like you did in the last question and have -6.It is difficult to imagine -3 things or -6 things, so just think of multiplying by a negative will reverse the sign (kind of like reversing the polarity of battery terminals). So if you reverse them one time (negative X positive) then it is opposite of what it was:If the number to be multiplied by is Positive, then the answer is negative : Negative X Positive = Negative.If the number to be multiplied by is Negative, then the answer is positive : Negative X Negative = Positive.If you multiply a number by a positive, it does not reverse the sign: Positive x something equals the a number with the same sign as the something.
If you divide a positive number by a negative number is the answer positive or negative?
Negative. Example: 3/-3= -1
What would be the answer to positive 3 times negative 4?
A positive times a negative is negative, so positive 3 times negative 4 would be negative 12.
What is greater negative 2 o positive 3?
Positive 3 is > 0 while, negative 2 is < 0. So positive 3 > negative 2.
Is the product of 8 negative and 3 positive factors a positive or negative?
If I understand your question correctly, then the answer is negative because if you add positive 3 to negative 8 the answer is negative 5.
