The explicit rule for a sequence is an=5(−2)^n−1
what is the recursive rule for the sequence?
1) an=−2(an+1)
a1=5
2) an=−5(an+1)
a1=2
3) an=−2(an−1)
a1=5
4) an=−5(an−1)
a1=2

3) ,

Step-by-step explanation:

Given that the explicit rule for a sequence is .

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

1) ,

2) ,

3) ,

4) ,

Plug n=1 into given formula to get first term

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

Hence correct choice is: 3) ,

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

ian gone lie this got me confused

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