For number 1. it is wrong. It is fresh water. Ocean water is salt water. I don't know the rest, sorry. I will come back if I find out though! :D
Answer:
Yes
Step-by-step explanation:
Of course we can.
13-11 = 2
15-13 = 2
17-15 = 2
As you can see, the numbers increased by two. hence the answer is 2.
Let's try to simplify x^2 + 16. It's a sum of two squares:
x^2 + 16 = 0
x^2 = -16
The problem is, we can't take a square root of a negative. This is where imaginary numbers come in.
Remember that square roots have a plus or minus symbol outside:
±√-16 = ±4i
Our two roots are 4i and -4i. Therefore, the trinomial simplifies to:
(x + 4i)(x - 4i)
If we attempt to divide x + 4 by these two binomials, we will find that 4 and 4i are not like terms. Therefore, we can't simplify this expression.
Answer:
20 days
Step-by-step explanation:
1 ton=2000ibs 2000/100=20
