Converting logarithmic Functions
log-->Exp
Log39=2
32=9
If $2500 is deposited into a savings account earning 8% interest. How much will be in the account in 25 years if compounded quarterly?
A= $18,111.62
7x+14/2x2-8 * 1x2+3x-10/1
7(x+5)/2
x2-9/1 / 4x+20/x2+8x+15
(x+3)2(x-3) / 4
24x/16 / 32y/48
3x / y
Exp-->Log
142=196
Log14196=2
Philip invested $300 with 5% interest rate. What is his account balance after 15 years if compounded semiannually?
A= $629.27
5x2-15x / 2x2+11x+12 * 3x2-48 / 10x3-70x2+120x
3 / 2(2x+3)
4x3+32/6x2-24 / 3x2-6x+12/x2-7x+10
2(x-5) / 9
3/x + 2 / 5/x
3+2y / 5
Log-->Exp
Log927=3/2
93/2=27
In 1990, Jameson deposited $1,000 in an investment account that warns 2 8/3% annual interest, compounded quarterly. What is the balance of his account in 2025?
A= $2,290.55
3x3-24 / 2x2-14x+20 * 4x3-20x2+3x-5 / 3x2+6x+12
4x2+3 / 2
36x5-63x4+72x3 / 9x2
3/x -5 / 1/x +2
3-5x / 1+2x
Log-->Exp
Log41/16=-2
4-2=1/16
When Goku turned 6 his mom opened a account with $500. It had a 3.2% interest rating compounded bimonthly. How much money will they have when they are 18?
A= $733.88
x2-9 / x2-10x+25 * 4x-20 / x2+5x+6
4(x+3) / (x-5)(x+2)
x2-x-2/2x2-5x+2 / x2-x-12/2x2+5x-3
x+1 / x-4
4/x - 2/y / 3/y + 2/x
4y-2y / 3x+2y
Exp-->Log
2-3=1/8
Log21/8=-3
Frank put in $1000 in a new 30-year retirement account. Which of the interest rates below will be the best option?
Option A= 5.5% interest compounded monthly
Option B= 2.7% interest compounded continuously
A= $5187.39
2x2+5x+2 / 4x2-1 * 2x2+x-1 / x2+x-2
x+1 / x-1
3y+3/6y+12 / 18/5y+5
5(y+1) / 6(y+2)
3/xy - 4 / 5 - 1/y
3 - 4xy / x(5y-1)