<span>The correct option is "20" because
f(n)=<span>n2</span>−n
(−4)=(−4<span>)2</span>−(−4)
=16+4
=20</span>
Answer:
n<-1
Step-by-step explanation:
Distribute 5 and -5 into each parenthesis respectively: 40n+35<5-5n-15
Combine like terms: 40n+35<-5n-10
Add 5n to both sides: 45n+35<-10
Subtract 35 from both sides: 45n<-45
Divide both sides by 45: n<-1
Answer:
Yes.
Step-by-step explanation:
Let's first convert his speed to km/h.
>
. Therefore, Rob is traveling within the speed limit.