Step-by-step explanation:
the first one is the correct one
a, = -51+12(n-1)
a(2) = -51+12(2-1)=-39
I hope this helps
Im sure from the answer
but I couldnt explain it exactly
Answer:
the answer your looking for is 3
Step-by-step explanation:
Answer:
Two distinct real solutions.
Step-by-step explanation:
Given the equation in the form
, you need to find the Discriminant with this formula:

For the equation
you can identify that:

Then, substituting these values into the formula, you get that the Discriminant is:


Since
, then
has two distinct real solutions.
5/6 because 5/6=0.80 and 2/3=0.66