Plug in n = 5 to find the 5th term
T(5) = 2(5) - 7
T(5) = 10 - 7
T(5) = 3
The 5th term is 3.
The elements you can see in the reaction are Calcium(Ca), Hydrogen(H), and Oxygen(O). So there are 3 elements in the chemical reaction.
By using distance formula :

Given points = ( 3 , 5.25 ) and ( 3 , - 8.75 )

On applying formula, we get

Hence, Option D is correct.
Answer: ask ggle it gives you the answer
Step-by-step explanation: