Answer:
the 1st one and the last one are the answers
Step-by-step explanation:
Answer:
Elimination
x=-5 and y=-8
Step-by-step explanation:
-(5x-4y=7) <--- Multiply by a negative so that y can cancel out
4x-4y=12
=-5x+4y=-7
4x-4y=12
=-x=5
x=-5
5(-5)-4y=7 <--- plug x back in to solve for y
-25-4y=7
+25 +25
-4y/-4=32/-4
y=-8
I think you have to times 3/10 3 times and then add 5/9
Answer is probably
<span>C. f(x)=x-2/3 and g(x)=2-3x</span>
Answer:
a(5)=8
Step-by-step explanation:
it is geometric so we will use this equation:
a(n)=a1*(r)^(n-1)
and we have a(1)=128 , r=1/2
So a(n)=128*(1/2)^(n-1)
fifth term : a(5)=128*(1/2)^(5-1)=8
hope this helps