4 years ago

What is the value of k?

1 answer:

6 0

3
that is the answer for "k" im sure:)

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Rashid [163]

<span> ϕ = (1+√5)/2 ≈ 1.618
10.4 * ϕ ≈ 16.8
10.4 / ϕ ≈ 6.4
Answer: b </span>

6 0

4 years ago

Sunny_sXe [5.5K]

Answer:

It will take an interest rate of 8.1% to get 150% of the initial investment in just 5 years.

Step-by-step explanation:

Use the formula for continuous compounding

$X(t) = Pe^{rt}$

where r stands for the (annual) interest rate, t for time in years, P for the initial principal (investment) and X is the amount after t years.

(this formula can be beautifully derived from just basic considerations, btw)

We are given t=5, and percent increase on the initial P, so we can solve for r

$X(5) = 1.5P=Pe^{r\cdot5}\\1.5=e^{r\cdot5}\\\ln 1.5=\ln e ^{5r}\\\ln 1.5=5r\\r = \frac{\ln 1.5}{5}=0.081\rightarrow 8.1\%$

It will take an interest rate of 8.1% to get 150% of the initial investment in just 5 years.

5 0

3 years ago

Evgesh-ka [11]

Hey is it 4.13 or 413??

3 0

3 years ago

Korvikt [17]

First time = 7:12
second time = 7:40
40 - 12 = 28
28 minutes have past

3 0

3 years ago

lisabon 2012 [21]

Answer:

V+25<5

V<5-25

V<-20

V is less than -20

8 0

3 years ago