Divide 60 by 12 and thats ur answer its 5...
The formula
a(n) = 2 - 5(n-1)
is in the form
a(n) = a1 + d(n-1)
where
a1 = first term = 2
d = -5 = common difference
The first term is carried over to the recursive formula. We start with a1 = 2. The next term after that is found by subtracting 5 from the previous term. So
second term = (first term) - 5
third term = (second term) - 5
and so on
The recursive step would be
a(n) = a(n-1)-5
So that's why the answer is choice C
The answer is 21
First you po perenthies which would be 8-6=2 the equation now is 5+4×(2)2
Then you to exponents which would be 2×2=4 the equation now is 5+4×4
Now you multiply 4×4=16 the equation is now 5+16
Now you add 5 and 16 to get 21
I must assume you mean:
[(x^2 - 4) / (x - 8)] / [x - 2] -----> express this way:
[(x^2 - 4)] / [(x - 8)(x - 2)]
But x^2 - 4 = x^2 - 2^2, which is a difference of squares: a^2 - b^2 = (a + b)(a - b) ----->
[(x + 2)(x - 2)] / [(x - 8)(x - 2)] -----> (x - 2) gets cancelled out ----->
(x + 2) / (x - 8)
<span>That's your answer. I hope this helps
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