Answer:
slope=(y2-y1)/(x2-x1)
=(1/b-1/a)/(b-a)
=((a-b)/ab)/(b-a)
=(a-b)/ab(b-a)
=(a-b)/(-(ab(a-b))
=-1/ab
It's letter b
Step-by-step explanation:
I hope this help
A:1
Step by step explanations:
C(n,r)=C(5,5)
n=5
r=5
=n! / (r!(n-r)!)
=5! / (5!(5-5)!)
=1
Answer:$25.80
6.45/5 = 1.29
1.29 x 20 =25.80
