when n = 14
10(14 - 6)
= 10 * 8
= 80
Answer:
Vertex
Step-by-step explanation:
By Pythagoras' Theorem, z^2 + (2.7)^2 = (4.2)^2.
This means that z^2 = (4.2)^2 - (2.7)^2 = 10.35.
So z = 3.2 (1 d.p.)
200 more on Friday than thursday
