Question

Аn=7n-15 Определите будет ли число 944 является членом этой последовательности

Answer 1

944 = 7n -15
7n = 944 +15
7n = 959
n = 959: 7 = 127
Ответ: число 944 является членом последовательности. Его номер 127

Answer 2

To determine whether the number 944 is a member of the sequence given by the formula An = 7n - 15, we need to find an integer value of "n" that satisfies the equation An = 944.

Let's set An = 944:

944 = 7n - 15

Now, let's solve for "n":

7n = 944 + 15 7n = 959

n = 959 / 7 n ≈ 137

As we obtained a fractional value for "n," it means that 944 is not a member of the sequence with the formula An = 7n - 15, as there is no integer value of "n" that makes An equal to 944.