U=2x+3, x=u/2-3/2
u^2+8u+11=0
u1=(-8+sqrt(64-44))/2=-4+sqrt(5)
u2=-4-sqrt(5)
x1=u1/2-3/2=-7/2+sqrt(5)/2
x2=u2-3/2=-7/2-sqrt(5)/2
Answer:
if positive: x=-4
if negative: x=0
Step-by-step explanation:
confused on the last 1 if its negative or positive.
if positive
6(x+1)-5x=8+2(x+1)
distribute outside of parenthesis
6x + 6 - 5x = 8 + 2x + 2
combine like terms
1x + 6 = 10 + 2x
move x all to one side
6 = 10 + 1x
move 10 to the other side
-4 = x
if negative
6(x+1)-5x=8+2(x-1)
distribute outside of parenthesis
6x + 6 - 5x = 8 + 2x - 2
combine like terms
1x + 6 = 6 + 2x
move x to one side
6 = 6 + x
move 6
0=x
1- B
2- C
3a- false
3b- false
3c- true
3d- true
3e- true
Answer:
The constant of proportionality is 1/15
Step-by-step explanation:
Constant of proportionality =
Hope this helped! :)