Answer:
an = a(n-1) - 7
Step-by-step explanation:
the second term is smaller than the first term 7.
a20 = a19 - 7
a19 = a18 - 7
=> a20 = (a18 - 7) - 7
Then you can accumalate until a1
-> a20 = a1 - 19*7 = 86 - 19*7 = -47
Answer:
cnc machining can include a lot of maths in it
Answer:
I think it's A
Step-by-step explanation:
Please correct me if I'm wrong
Translation does not affect length.
So the length of E'F' is 5 units.