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EastWind [94]
3 years ago
13

Help. divide and simplify(104i)/(3+i) express a in a + bi form

Mathematics
1 answer:
Flauer [41]3 years ago
3 0
Here we're dividing, but what actually happens is that we get the " i " out of the denominator:


104i        104i       3-i        312i + 104      312i + 104
------- = --------- * -------- = --------------- = ----------------
 3+i        3+i          3-i            9+1                  10

Note that 3-i is the "conjugate" of 3+i.
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erica [24]
To add fractions, first convert them to have equal denominators.

3/4= 9/12 (multiply both sides by 3)
2/3= 8/12 (multiply both sides by 4)

From here, add the numerators while keeping the denominator.
9/12+ 8/12= 17/12

Final answer: 17/12 or 1 5/12
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2 years ago
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sergij07 [2.7K]
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Using FOIL method:
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8 0
3 years ago
A rectangular billboard is 9.35 meters wide and 6.82 meters tall what is the perimeter of the billboard in meters?
kati45 [8]
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The actual formula for a rectangle or even a square is
2(length + width)


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shtirl [24]

Question

The original price of a camera is $150. If a discount of 30% is given, what is the amount of this discount ?


150 : 100 * 30 =

45$ is your answer

---------------------


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Do it right plss I need good grades
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Answer:its yhe one on the right

Step-by-step explanation:

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