Answer: D.
Step-by-step explanation:
The formula to find the compound amount (investment plus interest ) at the end of t years :
(1)
, where r= rate of interest ( in decimal)
P= Initial amount.
As per given , we have
P = x dollars
r = 8% = 0.08
t = 5
Put all the values in (1) , we get
Therefore , the the expression that represents the value, in dollars, of Pat's investment plus interest at the end of 5 years :
Hence, the correct answer is D.
You multiply 9 times nine 6 times. ~9*9*9*9*9*9~
Answer:
b.
a.
Step-by-step explanation:
b.
a.
The two expressions are identical on each side of the equivalence symbol, therefore they are an identity.
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Answer:
F(1) = 45
<u>f(n) = f(n-1) * (4/5)</u>
Step-by-step explanation:
f(n) = 45 x (4/5)ⁿ⁻¹
f(1) = 45 x (4/5)¹⁻¹ = 45 x (4/5)⁰ = 45 x 1 = 45
f (n-1) = 45 x (4/5)ⁿ⁻¹⁻¹ = 45 x (4/5)ⁿ⁻²
<u>f(n) = f(n-1) * (4/5)¹</u> = 45 x (4/5) ⁿ⁻²⁺¹ = 45 x (4/5)ⁿ⁻¹