Somehow i got 2.5 guess i am wrong...
Answer:
True, see proof below.
Step-by-step explanation:
Remember two theorems about continuity:
- If f is differentiable at the point p, then f is continuous at p. This also applies to intervals instead of points.
- (Bolzano) If f is continuous in an interval [a,b] and there exists x,y∈[a,b] such that f(x)<0<f(y), then there exists some c∈[a,b] such that f(c)=0.
If f is differentiable in [0,4], then f is continuous in [0,4] (by 1). Now, f(0)=-1<0 and f(4)=3>0. Thus, we have the inequality f(0)<0<f(4). By Bolzano's theorem, there exists some c∈[0,4] such that f(c)=0.
Answer:
use Pythagoras theorem formula 
= 
+ 
Step-by-step explanation:
= 
+ 
= 576 + 324
= 900
C = 
C = 30
Does that make sense? :|
Answer:
A car can travel 80 miles on 2 gallons of gasoline.
Step-by-step explanation:
