Answer: 220
Step-by-step explanation:
When we wanto to create a group of K elements for a set of N elements (where the order of the K elements does not matter, so we do not considerate the permutations of the K elements), the number of possible combinations is:

Here N = 12 and K = 3

So there are 220 possible combinations
Answer:
56 inches!
Step-by-step explanation:
Rectangles ABCD and EFGH are concentric, that means that they are almost the same but their sides have a different ratio.
First, lets find the area of EFGH.
1). Area of EFGH = a * b = 4 * 6 = 24 inches
Then we will find the area of ABCD.
2). Area of ABCD = a * b = 10 * 8 = 80 inches.
Now we know the areas of the rectangles, we can find the area of the un-shaded part.
3). Area of ABCD - Area of EFGH = 80 - 24 = 56 inches
So, 56 inches will be your answer.
Hope this helps))) ^‿^
Answer:
C is an independent variable
Step-by-step explanation:
The input is the number you feed into the expression
Answer:
44ft^2
Step-by-step explanation:
Break the shape into 3 rectangles, two 3 by 2's and one 4 by 8. (Get 4 by subtracting 3 from 7 for the left and right most side)
3 x 2 = 6 ft^2
since there's two rectangles you end up 6 + 6 so you get 12 ft^2
then 4 x 8 = 32 ft^2
add 32 and 12, get 44 ft^2
1+1+1 is 3. And you have 1/3+1/3+1/3=3/3=1. So you end up with 3+1=4. So yes