Answer:
540 is the correct answer. Each mark is an increase of 20.
To check for continuity at the edges of each piece, you need to consider the limit as 
approaches the edges. For example,
has two pieces, 
and 
, both of which are continuous by themselves on the provided intervals. In order for 
to be continuous everywhere, we need to have
By definition of , we have 
, and the limits are
The limits match, so is continuous.
For the others: Each of the individual pieces of 
are continuous functions on their domains, so you just need to check the value of each piece at the edge of each subinterval.
B: enclosing rectangle is 9×6=54. Then subtract 2 triangles tha together are 6x7=42. 54-43=12.
C. seems to me just 6x4=24.
Answer:
Step 3
Step-by-step explanation:
This is the right one because you are adding two thing in step two which lead to step 3
Answer:
x - 80
Step-by-step explanation:
Ravi had x dollars in all.
x - 80
