Skewed Right, if you have any more questions just ask :)
-1 1/8 because -9/8 is equal to so just make it a improper fraction, pretend the negative is not there then add the negative at the end
-hope this helps :D
What are you trying to do? inverse or factor or something like that?
8x^7y^3 * 3x^3y
Multiply 8 * 3 = 24
Multiply x^7 * x^3 = x^10
Multiply y^3 * y = y^4
Answer: 24x^10y^4
I don't think you're stupid. ^^
Let's take the third term, 8. If n=3, then an should be 8.
The first answer gives 15+2.5*3=22.5.
The second answer gives 15.5+2.5=23.
The third answer gives 15-2.5*3=7.5.
The fourth answer gives 15.5-2.5*3=8.
Choice 4 is correct.
Let's try to actually find the equation on our own.
The equation for an arithmetic series is an=a0+dn where a0 is the term that comes before the first term.
The first term given is 13 and it decreases by 2.5 each time so n=-2.5 and the term that would be before 13 is 15.5.
Thus the equation is an=15.5-2.5n