Answer:
A. 6
Step-by-step explanation:
The formula for nth arithmetic sequence =
aₙ = a₁+(n - 1) d
a₁ = First term
n = number of terms
d = common difference
In the question above, explicit formula for the nth term:
aₙ = 2 + (n - 1)(6)
This means, the first term a1 = 2
d = 6
The same sequence has the following recursive formula:
aₙ = aₙ₋₁+ ___
The formula for a recursive formula is
aₙ= aₙ₋₁+ d
Where the common difference from the nth term = 6
Therefore , the number that belongs in the blank space in the recursive formula is 6
First lets consider the regular numbers here. 15 + 24. That gives us 39. Next we consider the variables. There's 0 a's in the first part, and 1 in the second part. So you simply get 1a added on top of the 39. Next, the x variable. There's one on each part, so just add them together to get x^2 (Note that you must do it this way rather than getting 2x since you're only adding x's, so when adding/subtracting variables on its own, its expressed as an exponent). With all this in mind, you'd get answer A
Answer:
150.72
Step-by-step explanation:
V = 3.14 x r^2 x h
V = 3.14 x 2^2 x 12
V = 3.14 x 4 x 12
V = 150.72
Answer:
i don't know if I helped you
