You multiply 8 by 1 because if you round up it will be an estimate
8 x 1 = 8
So Kim is wrong
Answer:
C
Step-by-step explanation:
x+4> 8
Subtract 4 from each side
x+4-4>8-4
x > 4
Open circle at 4, line going to the right
Answer:
X=4
Step-by-step explanation:
First you add like terms, in this case 5x and x. Then you have 6x-1=23. You then add 1 from both sides so you end up with 6x=24. This then results in X=4
Sqrt(-72)/(5*i*sqrt(-2)
=sqrt(72)i/(5i*i*sqrt(2))
=sqrt(72/2)*i/(5*(-1))
=-sqrt(36)i/5
=-6i/5