P(mm) = 40/100 x 40/100 = 4/25
p(ff) = 60/100 x 60/100 = 9 /25
4/25 + 9/25
= 13/25
Answer:
A function normally tells you what y is if you know what x is.
Answer:
![\large\boxed{a_n=3n-10}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Ba_n%3D3n-10%7D)
Step-by-step explanation:
It's an arithmetic sequence.
![-4-(-7)=-4+7=3\\-1-(-4)=-1+4=3\\2-(-1)=2+1=3\\5-2=3](https://tex.z-dn.net/?f=-4-%28-7%29%3D-4%2B7%3D3%5C%5C-1-%28-4%29%3D-1%2B4%3D3%5C%5C2-%28-1%29%3D2%2B1%3D3%5C%5C5-2%3D3)
The difference is constant.
The explicit formula of an arithmetic sequence:
![a_n=a_1+(n-1)d](https://tex.z-dn.net/?f=a_n%3Da_1%2B%28n-1%29d)
Substitute:
![a_1=-7,\ d=3](https://tex.z-dn.net/?f=a_1%3D-7%2C%5C%20d%3D3)
<em>use distributive property</em>
![a_n=-7+3n-3\\\\a_n=3n+(-7-3)\\\\a_n=3n-10](https://tex.z-dn.net/?f=a_n%3D-7%2B3n-3%5C%5C%5C%5Ca_n%3D3n%2B%28-7-3%29%5C%5C%5C%5Ca_n%3D3n-10)
Answer:
a rectangle
Step-by-step explanation:
because 2 sides are the same the other 2 arent it has four sides with straight angles
Answer:
a₆ = 21875
Step-by-step explanation:
Using the recursive rule and a₁ = 7 , then
a₂ = 5a₁ = 5 × 7 = 35
a₃ - 5a₂ = 5 × 35 = 175
a₄ = 5a₃ = 5 × 175 = 875
a₅ = 5a₄ = 5 × 875 = 4375
a₆ = 5a₅ = 5 × 4375 = 21875