What’s the answer? Please!!

Mathematics

2 answers:

gogolik [260]2 years ago

8 0

Answer:

Step-by-step explanation:

Sholpan [36]2 years ago

4 0

1 I agree with the person above

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lesya692 [45]

Answer:

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Step-by-step explanation:

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If (x)=2x^2-x-6 and g(x)=x^2-4, find f(x) ÷g(x)

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2 years ago

PLEASE Help! ASAP PLZ

ira [324]

Answer:

0.57 yr

Step-by-step explanation:

To find the doubling time with continuous compounding, we should look at the formula:

$FV = PVe^{rt}$

FV = future value, and

PV = present value

If FV is twice the PV, we can calculate the doubling time, t

$\begin{array}{rcl}2 & = & e^{rt}\\\ln 2 & = & rt\\t & = & \dfrac{\ln 2}{r} \\\end{array}$

1. David's doubling time

$\begin{array}{rcl}t & = & \dfrac{\ln 2}{0.06125}\\\\& = & \textbf{11.317 yr}\\\end{array}$

2. Violet's doubling time

The formula for interest compounded periodically is

$FV = PV\left (1 + \dfrac{r}{n} \right )^{nt}$

where

n = the number of payments per year

$\begin{array}{rcl}9600 & = & 4800\left (1 + \dfrac{0.065}{4} \right )^{4t}\\\\2 &= & (1 + 0.01625 )^{4t}\\& = & 1.01625^{4t}\\\ln 2& = & 4 (\ln 1.01625)\times t \\& = & 0.064478t\\t& = & \dfrac{\ln 2}{0.064478}\\\\& = & \textbf{10.750 yr}\\\end{array}$