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ladessa [460]
2 years ago
9

The first five terms of a quadratic sequence is 1,8,21,40,65 .

Mathematics
2 answers:
Paladinen [302]2 years ago
6 0

Answer: Nth term = 5

Explanation:

An = a + ( n - 1 ) d

a = first term and

d = the difference

An = 1 + ( n - 1 ) 6

= 1n - 1 + 6

CLT

N = -1+6

N = +5 /5

Mark brainliest

maks197457 [2]2 years ago
4 0

Answer:

Formula To Find: a_{n}  = 3n^2 - 2n

Step-by-step explanation:

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We have the following equation:

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The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\  \\ \sqrt{f^{-1}(x)}=x+4 \\  \\ f^{-1}(x)=(x+4)^2 \end{gathered}

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Therefore, the domain is x ≥ -4.

So the correct answer is D.

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