Answer:
3.995
Step-by-step explanation:
A midpoint is defined as a point that is exactly in the middle between two other points. The midpoint between two numbers is the number exactly in the middle of the two numbers. Calculating the midpoint is the same thing as calculating the average of two numbers. Therefore, you can calculate the midpoint between any two numbers by adding them together and dividing by two.
Answer:

Step-by-step explanation:
Given
-- of the roadworks

Required
Determine the speed
In this case:


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<em> --- approximated</em>
Answer:
option (2) is correct.

Step-by-step explanation:
Given two similar rectangles and with dimension of sides,
we have to choose the correct proportion for corresponding sides.
Since, the rectangles given are similar rectangles.
So, the corresponding sides are in same proportion in case of similar figures,
So,

Thus, option (2) is correct.