Answer:
Step-by-step explanation:
K
At least 4 means its minimum value is 4 so n≥4
Answer:
The common difference of the given AP is d=5.
Step-by-step explanation:
Given the sequence

An Arithmetic sequence has a constant difference 'd' and is defined by

Computing the common difference of all the adjacent terms


As the difference between all the adjacent terms is the same and equal to

Therefore, the common difference of the given AP is d=5.
Answer:
5/3 or 1.666...
Step-by-step explanation:
SLOPE: get the difference of each coordinate and divide them.
two points: A(2,7) and B(5,12)
we subtract ax from bx:
5 - 2 = 3, "dx"
and subtract ay from by:
12 - 7 = 5, "dy"
now we divide dy/dx:
5/3 or 1.666...
that's the slope