You multiply them just as you would multiply any normal polynomials, except there is a special rule. Since we know that i = √-1, the rule is that i² = -1. So, let's multiply:
![(9-4i)(8+6i) = 72+54i-32i-24i^2](https://tex.z-dn.net/?f=%289-4i%29%288%2B6i%29%20%3D%2072%2B54i-32i-24i%5E2)
Let's simplify this:
![72+22i+(-24*-1)](https://tex.z-dn.net/?f=72%2B22i%2B%28-24%2A-1%29)
![72+22i+24 = 96+22i](https://tex.z-dn.net/?f=72%2B22i%2B24%20%3D%2096%2B22i)
Therefore, your answer is 96 + 22i.
Answer:
hi
Step-by-step explanation:
Answer:
$1913.34
Step-by-step explanation:
$1784 (original amount) * 7.25% (sales tax) = $129.34 Tax paid
129.34 + 1784 = Price after tax
Answer:
If this is the complete question them the answer is 1250 m²
Step-by-step explanation:
the pool in the drawing is 15x7.5 and the scale is 3/1000 so if the size in the drawing is 3 then the actual is 1000.
x=15*1000/3=5000cm which would be 50m
x=7.5*1000/3=2500cm which is 25m
the actual area of the pool is 50*25=1250 m²
Answer:
27$
Step-by-step explanation: