Answer with Step-by-step explanation:
We are given that

when x<9
when 
LHD

=
RHD



Hence, the function is not differentiable at x=9
I’m assuming the answer is HL since they only gave us two letters.
Answer:
113.1cm
Step-by-step explanation:
area=
r²
r= half the diameter r=6
a=
6²
a=
36
a=113.1 cm
2/3x=4-15
2/3x=-11
2=3x*-11
2=-33x
2/-33=-33x/-33
x=-2/33
Answer:
The ratio of AC/CB=1/3
Step-by-step explanation:
We use the section formula:

We substitute the point A(-1.5,0) and B(4.5,8).
We plug in the points to get:

This is supposed to be equal to: (0,2).

We can equate, corresponding coordinates to find m and n.

This implies that:




Therefore the ratio is m:n=1:3