Answer:
Option B,They are not valid because the student did not control all the variables that can affect plant growth
Step-by-step explanation:
In case of water applied to the plants - the student watered the plant to which he has spoken by hand and to the remaining plants to which he has not spoken, he watered them by using sprinkler.
Water is an essential factor that effects plant growth. This factor must have been controlled. However, the water was given to both the plants only the quantity of water given varies in the two cases. Hence, the claim of student is not valid.
Hence, option B is correct
Probably between obtuse angle or triangle because sometimes they trick you
But I'm not 100 percent sure
Answer:
49 cubic feet
Step-by-step explanation:
Answer:
Answer is a.multiplication.
Step-by-step explanation:
I hope it's helpful!
Answer:
an = 7 + 5n
Step-by-step explanation:
First we know that for each number of days rented the cost increase by 5 so we get an - (?) + 5n.
We also know the first number is 12 for 1 day, so for 0 days, or the starter cost, is 7. We get this by subtracting 5 from 12.
Hence the answer an = 7 + 5n
