Answer:
5 centimetres = 1 kilometre
Step-by-step explanation:
First add up the distances measured on the map.
1.1+4.8+2.2+3.4=11.5 cm
Based on this, since the number of cm is greater than the number of km, we can figure out that each cm should not be multiplied to get the km, so we can eliminate the first two answers.
Next write an equation to represent finding the scale
x=scale
11.5=2.3x
Now solve for the scale
11.5/2.3=2.3x/2.3
5=x
Therefore the scale is 5 centimetres = 1 kilometre
Answer:
the value of x in terms of b is bx=-13
the value of x when b is 3 is x=-1
I'll assume you're supposed to compute the line integral of 
over the given path 
. By the fundamental theorem of calculus,
so evaluating the integral is as simple as evaluting 
at the endpoints of . But first we need to determine given its gradient.
We have
Differentiating with respect to 
gives
and we end up with
for some constant . Then the value of the line integral is 
.
