Answer:
The percent error is 40%.
Step-by-step explanation:
5 (actual time) - 3 (estimated time) = 2
2 divided by 5 (actual time) = 0.4
0.4 x 100 = 40%
A equals 4 and
B equals 1
Answer:

Step-by-step explanation:
Let the third side of the triangle be
.
We can apply the cosine rule to find
.

We evaluate to obtain;



We take the positive square root of both sides to obtain;

The correct answer is B.
60 meters per apartment x 12 apartments =720total metes for all 12 apartments 720 meters / 100 meters per spools =7.2 spools so, Ted will need at least 8 spools of cable.