Given the function, f(x)= 5(x+4)^3/2, which of the following represents its y-intercept
1 answer:
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Since during middle of each month, Bryce withdraws half of his amount. So at the end of each month, his balance is 1/2 times as compared to balance of his previous month.
The following recursive function represents the Brye's balance at end of each month:
where
is the account balance of previous month. And 
is the account balance of current month.
The following recursive function represents the Brye's balance at end of each month:
where
Answer:
s ≈ - 0.5 , s ≈ 8.5
Step-by-step explanation:
s² - 8s - 4 = 0 ( add 4 to both sides )
s² - 8s = 4
To complete the square
add ( half the coefficient of the s- term )² to both sides
s² + 2(- 4)s + 16 = 4 + 16
(s - 4)² = 20 ( take square root of both sides )
s - 4 = ± ( add 4 to both sides )
s = 4 ±
Then
s = 4 - ≈ - 0.5 ( to the nearest tenth ) ← smaller solution
s = 4 + ≈ 8.5 ( to the nearest tenth ) ← larger solution