2 years ago

PLEASE HELP QUICKKKK I GIVE BRAINLYIST PLEASEE

Mathematics

2 answers:

grandymaker [24]2 years ago

5 0

Answer:

Step-by-step explanation:

As you can see, each time (let's say n) increases by 1, it divides by 1/2. So from a1 to a2, you get 28/2 or 14, then from a2 to a3, 14/2 or 7.

7 being your answer.

Radda [10]2 years ago

4 0

Answer:

Step-by-step explanation:

Given the recursive formula.

$a_1=28\\a_n=1/2a_{n-1}$

Use it to determine the value of te third term.

$a_3=1/2a_2=1/2(1/2a_1) = 1/4a_1=1/4(28) = 7$

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