Answer:
270 degrees counter-clockwise
Step-by-step explanation:
90 degree clockwise or 270 degree counter-clockwise
(x,y)----->'(y,-x)
Right triangles have a 90 degree corner.
Well it has to add up to 180 So try to figure out the letters like c and b
1st let's calculate r the common ratio:
r = (-20)/4 = (100/-20) = -5
Value of nth term = a₁.rⁿ⁻¹, where a₁= 1st term and n, the rank
Value of nth term = 4r⁽⁷⁻¹⁾ = 4.(-5)⁶
Value of nth term = 62,500
