2ⁿ = 20000
→ log(2ⁿ) = log(20000)
→ n log(2) = log(20000)
→ n = log(20000)/log(2)
You can use logs to any base you like as long as you use the same base for each log
→ n ≈ 14.29
14 to the power of 2 means 14 x 14 which equals 196.
Year Amount Disc Rate Present Value 1 20000 1.0700 18692 2 20000 1.1449 17469 3 20000 1.2250 16326 4 20000 1.3108 15258 5 20000 1.4026 14260 6 20000 1.5007 13327 7 20000 1.6058 12455 8 20000 1.7182 11640 9 20000 1.8385 10879 10 20000 1.9672 10167 Total PV 140472
The discriminant is 900.
7(2 + 2x) is 78 when x = 3. = 5,764,801.
that equals 2*2*2 which equals eight
0.25
14 to the power of 2 means 14 x 14 which equals 196.
If x^2 = 121 then the value of x is 11
20000
2 to the 7th power equals 128....
Year Amount Disc Rate Present Value 1 20000 1.0700 18692 2 20000 1.1449 17469 3 20000 1.2250 16326 4 20000 1.3108 15258 5 20000 1.4026 14260 6 20000 1.5007 13327 7 20000 1.6058 12455 8 20000 1.7182 11640 9 20000 1.8385 10879 10 20000 1.9672 10167 Total PV 140472
Total value = 20000*(1.06)2 = 22472 So interest = 2472
32 to the power of 2 (322) equals 1,024
The discriminant is 900.
x = 25^2 = 25*25 = 625.
7(2 + 2x) is 78 when x = 3. = 5,764,801.
that equals 2*2*2 which equals eight