-12 is the answer to this !
-(-5) cancels out to a + sign so technically it is asking what plus what gives you -7.
Do you mean a_(n+1), worded a sub (n+1)?
If so yes. If the function of the sequence is getting smaller or more negative with each term.
6! = 6 * 5 *4*3*2*1 =720
8p5 = 8*7*6*5*4 = 6720
12C4 = (12p4)/4! = (12*11*10*9)/4*3*2*1 = 495
Answer:
20
Step-by-step explanation:
25*4 equals 100 so 80/4 is 20.
Answer:
The answer is 8.6×10¹⁴
Step-by-step explanation:
You can evaluate it :



