Doesn't ask what kind of cd's and what age it was aimed at
Answer:
35 ways
Step-by-step explanation:
Alex has 9 friends and wants to invite 5 friends. Since Alex requires two of his friends who are twins to come together to his birthday party, since the two of them form a group, the number of ways we can select the two of them to form a group of two is ²C₂ = 1 way.
Since we have removed two out of the nine friends, we are left with 7 friends. Also, two friends are already selected, so we are left with space for 3 friends. So, the number of ways we can select a group of 3 friends out of 7 is ⁷C₃ = 7 × 6 × 5/3! = 35 ways.
So, the total number ways we can select 5 friend out of 9 to party come to the birthday include two friends is ²C₂ × ⁷C₃ = 1 × 35 = 35 ways
Billion million Gillian
Idk delete this comment I don't deserve it here not a proper answer :(
I think you're supposed to substitute -5 into x. So now the equation is
f(-5)= 6(-5) +7.
f(-5)= -30+7
f(-5)= -23
As a result, the value of f(-5) is -23
Answer:
y=3x ( the'=' sign is the proportionality sign)
Step-by-step explanation:
x = 1 , 2 , 3 , 4
y = 3 , 6 , 9 , 12
You are multiplying by 3 to get to y
1 x 3 = 3
2 x 3 = 6
3 x 3 = 9
4 x 3 = 12
