1. 6x-15
2. 18x-55
3. 7.2x+2.3y-2
Answer:
Step-by-step explanation:
hello :
the n-ieme term is : An=A1×r^(n-1)
A1 the first term r : the common ratio
in this exercice : A1 =5 r = 125/-25=-25/5 = - 5 n = 9
A9=5×(-5)^(9-1) = 5×5^8 = 5^9 because : ((-5)^(8)= 5^8)
Answer:
1/2
Step-by-step explanation:
(-2-(-1))/(-4-(-2))=1/2
4, -8
add the x's and add the y's
