Answer:
Subtracting a negative number
Answer:
-37.
Step-by-step explanation:
a2 = 2 a2-1 - 3
= 2 a1 - 3
= 2*-2 -3
= -7
a3 = 2 a3 - 3
= 2*-7 - 3
= -17
4th term a4
= 2*-17 - 3
= -37.
Here is a trick that not a lot of people know
(# of terms)*(first+last)/2
(in case you don't know, * means multiply and / means divide)
T = large candles and s = small candles
3t + 5s = 6.40
4t + 6s = 7.50
^^ this would be ur system of equations
True.
Since
,
and the solutions are decreasing functions.
