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xenn [34]
3 years ago
12

how do you write the quotient (9+i) over (9-i) in standard form? I need the answer but more importantly, I need to learn how to

solve these kinds of problems.
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0
Since they are the conjugates of each (9-a and 9+a are conjugates, or with any number replacing 9) , we multiply it by (9+i)/(9+i) to get (9+i)^2/(9-i^2)=(81+2i+i^2)/(9-(-1))=(81-1+2i)/(10)=80/10+2i/10=8+i/5. Conjugates work because they make i into i^2 (-1) without any of the sneaky i's in the middle!
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1/12

Step-by-step explanation:

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3 0
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3 years ago
A mill processes 27 tons of flour in 3 hours. How many tons of flour can the mill process in 8 hours if the rate of production s
Delvig [45]
There are a few ways you can go about solving this question. One way is to use the given information to find how many tons of flour can be processed in one hour. If 27 tons can be processed in 3 hours, we can do 27 divided by 3 to find that 9 tons of flour can be processed per hour. Then, if we want to see how many tons of flour can be processed in 8 hours, we can multiply 9 tons by 8 hours to get a total of 72 tons of flour.

I hope this helps.
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the volume of an ice cream cone is 12 pi cubic cm. if the height is 9 cm, what is the diameter of the cone ?
djverab [1.8K]

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You didnt identify the volume so we can find the radius

Step-by-step explanation:

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3 0
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<em>V</em>≈301.59

I think this is the answer.

Hope this helps!

6 0
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