This is a combination problem. The approach to this is by using the nCr method, where n is the number of total objects and r is the number of success. For example, if you want to get 3 red out of the total 4, then that would be 4C3. That means,
4C3 = 4!/3!(4 - 3)! = 4 ways
If you want to get 2 green out of the total 6, then that would be 6C2. That means,
6C2 = 6!/2!(6-2)! = 15 ways
Therefore, there are a total of 4+15 = <em>19 ways</em>.
Answer:
a.2^(a+b+c)
b.2^(a+b+a-b)=2^(2a)or 4^a
c.2^(a+b+c)/2^(a+b)=2^(a+b+c-a-b)=2^c
Slope = change in y / change in x
= (8 - -3) / (1 - 2) = (8 + 3) / ( 1 - 2)
= 11 / -1
= -11
Slope is negative.
Answer:
The answer is A. 
Step-by-step explanation:
Answer:
5.Let Alisha= A
Riley= R
Jordan= J
A=7
R=A+4= 7+4= 11
J=3*7= 21
Riley=11
Jordan=21
6.Red Marbles= 18
Yellow Marbles=18*3=54
Green Marbles=18-10= 8
7.This year= 28 eagles
Last year=28/4 =7 eagles
Difference= 28-7 = 21 Eagles
8.Joel= 8 pictures
Taylor= 8*3= 24 pictures
1 Row= 4 pictures
24 pictures= 24/4= 4 rows
