Question

А¹=5, d=-2, a⁷-? help ​

Answer 1

Ответ: a⁷=-7

Пошаговое объяснение:

a¹=5, d=-2; a⁷=?

a⁷=5+6*(-2)=-7

a⁷=-7

Answer 2

To find the 7th term of an arithmetic sequence with a first term (A₁) of 5 and a common difference (d) of -2, you can use the formula for the nth term of an arithmetic sequence:

$A_n = A_1 + (n - 1) \times d$

In this case, you want to find $A_7$, so plug in the given values:

$A_7 = 5 + (7 - 1) \times (-2)$

Now, calculate:

$A_7 = 5 + 6 \times (-2)$ $A_7 = 5 - 12$ $A_7 = -7$

Therefore, the 7th term ($a^7$) in this arithmetic sequence is -7.