A.) A = 20000 + 1000n
B = 20000(1.04)^n
b.) For A, sn = n/2(2a + (n - 1)d)
s20 = 20/2(2(20000) + 1000(20 - 1)) = 10(40000 + 19(1000)) = 10(40000 + 19000) = 10(59000) = $590,000
For B, sn = a(r^n - 1)/(r - 1)
s20 = 20000((1.04)^20 - 1)/(1.04 - 1) = 20000(2.191 - 1)/0.04 = 20000(1.191)/0.04 = 23822.46 / 0.04 = $595,561.57
c.) Using a graphing calculator, it takes 18 years for the
<span>total amount earned a company B is greater that the total amount of earned at company A.</span>
A variable represents an unknown number
4/5 because 8/10 is equal to 4/5 which is the simplest form<span />
Consider, pls, this option:
a) for y≥2x-3 it is A and C regions;
b) for y≤-x+2 it is B and C regions;
c) from both it is C region.
D. combine like terms, 4+7 is 11 and -3 and -10 is -13
