Number 1 The population of bacteria triples every day.
90 + (61 + x) = 180
x + 151 = 180
180 - 151 = 29
x = 29
I believe
Answer:
x=√65 and x=-√65
Step-by-step explanation:
Givn the expression 2x^2 - 9 = 121
Add 9 to both sides
2x^2 - 9 + 9 = 121 + 9
2x^2 = 130
Divide both sides b 2
2x^2/2 = 130/2
x^2 = 65
x = ±√65
x=√65 and x=-√65
Answer:
-2w
Step-by-step explanation:
If you distribute w with 1 and 3 you will get 1w - 3w. Since the variables are the same, then you subtract 1w from 3w which will give you -2 as the answer.
