Answer:

Step-by-step explanation:
Given the legs of right angled triangle 4 and 5 units. we have to find the length of hypotenuse.
By Pythagoras theorem,
In right angled triangle the square of the length of the hypotenuse is equal to sum of squares of the lengths of other two sides

Hence, 
Answer:
David
Step-by-step explanation:
cuz its davids dad
Answer:
s inversely proportional 1/t
s=0.3, t=8
s=k/t
0.3=k/8
k=0.3×8
k=2.4
find s when t=0.4
s=2.4/0.4
s=6.0 or 6
I’m not sure but I think it’s b or 5