There are 7 terms in this series.
Answer:
your answer is y = -x - 3
Step-by-step explanation:
Slope is -1
Y intercept is -3
y = mx + b
substitute
The answer is b because 80+60=140, -7 and then divide by three you get 11
Answer:

Step-by-step explanation:
From the question we are told that:
Length of each side
Let the triangle be divide by two form a right angle triangle with base angles as
(angle of perpendicularity) and
(angle on each vertices of an equilateral triangle)
Generally the equation for the Altitude X is mathematically given by
Trigonometric Rule


