3x<-9
3x/3<-9/3
x<-3 or (-∞,-3).
Answer: (-∞,-3).
=2(5x2+20x-1)
The 2 by the x has to be on top of the x
Answer: let's say x = 1
16 x 1 =16
16+20=36
36x1/2=18
Step-by-step explanation:
A^2 + b^2 = c^2
a^2 + 7^2 = 11^2
49= 121
121 - 49 = 72
Square root(72) = 8.49
or you can just keep the square root symbol with 72 under it
