It will be 4f-30. Using substitution, you get (-8f-12) + (12f-18). Adding this together you get -8f-12+12f-18. Then you add -8f and 12f to get 4f, and add -12 and -18 to get -30.
Answer:
√25
Step-by-step explanation:
√25 = √(5²) = 5 . . . . a rational number
The other roots are not the roots of perfect squares, so are irrational.
Answer:
It's A
Step-by-step explanation:
Times each number by 4 in the columns
Answer:
100
Step-by-step explanation:
1=ad=100
and I need more characters so don't mind me.