Answer:
following are the solution to this question:
Step-by-step explanation:
Please find the complete question in the attached file.

The one-sided limits of F(x) at x = 3 must be equivalent for f(x) to be continuous at x = 3.
So,


In equation a multiply the by -2 and then add in the equation b:
So, the value of
Given that the First term of the Arithmetic sequence = -3
⇒ a = -3
We know that nth term of a Arithmetic sequence is : Tn = a + (n - 1)d
where a is the first term and d is the common difference
Given that 10th term is 15
⇒ T₁₀ = -3 + (10 - 1)d
⇒ -3 + (10 - 1)d = 15
⇒ 9d = 18
⇒ d = 2
⇒ Common difference of given Arithmetic Sequence is 2
Pretty sure it's everything except irrational
Answer: you're right, it is D.
Step-by-step explanation: