Answer/Step-by-step explanation
1. When adding real numbers with the same sign the sum will have the same sign as the numbers added.
2. When adding real numbers with different signs you subtract the lesser absolute value from the greater one. The sum will then have the same sign as the number with the greater absolute value.
3. There are a couple of properties of addition:
The additive commutative property tells us that the order in which you add the numbers does not change the sum.
4. And the additive associative property tells us that it also that the order in which we group three or more numbers does not affect the sum.
5. The additive identity property tells us that the sum of a number and 0 is always the number.
6. And the additive inverse property tells us that if you add a number with its opposite you will always get 0
Answer:
3 by 3
Step-by-step explanation:
Since the area is 144 and there is 16 equals peices you can divide them to find the area of 1 small square piece so
144/16=9
since it is a square the side lengths are equal so
=3 so the dimensions are
3 by 3
So firstly, remember that <u>subtracting a negative number is the same as adding a positive number</u> so our expression will look like this:

Now solve as such:

<u>Your answer is -4, or A.</u>
Answer:
8
Step-by-step explanation:
A=πr^2
64π=πr^2
since answer is in terms of pi, ignore the pi.
sqrt(64)=8
What you need to do is make each fraction into a decimal and then put them in order from least to greatest.
7/12=0.583
1/8= 0.125
5/16= 0.3125
5/6= 0.83
The order for this is 0.3125, 0.125, 0.583, and 0.83. So the answer is last option