When trying to figure the value of old $20 bills its important to at least understand some basic concepts. Before you sell your old currency, whether it’s to us or someone else, you want to educate yourself so you don’t get ripped off when selling your bills. It’s easy to get cheated, that’s why we put together this guide so the public can become more educated.
Answer:
the modulus of a complex number z = a + bi is:
Izl= √(a²+b²)
The fact that n is complex does not mean that n doesn't has a real part, so we must write our numbers as:
m = 2 + 6i
n = a + bi
Im + nl = 3√10
√(a² + b²+ 2²+ 6²)= 3√10
√(a^2 + b^2 + 40) = 3√10
squaring both side
a²+b²+40 = 3^2*10 = 9*10 =90
a²+b²= 90 - 40
a²+b²=50
So,
|n|=√(a^2 + b^2) = √50
The modulus of n must be equal to the square root of 50.
now
values a and b such
a^2 + b^2 = 50.
for example, a = 5 and b = 5
5²+5²=25+25= 50
Then a possible value for n is:
n = 5+5i
If you divide it by 5 on both numbers you get four and three. So 4 is the answer.
A=p(1+i/k)^kn
24000=p(1+0.064/4)^4*15/12
24000=p(1.016)^5
P=24000/(1.016)^5
P=22,168.83
Step-by-step explanation:
P = 2l + 2w --> w = 1/2·P - l = 1/2·42 - 15 = 6 feet
