3 years ago

(3-4i)/(4-5i) HELP ME PLEASE --- algebra 2 question i = the square root of -1 (<<

Mathematics

1 answer:

posledela3 years ago

8 0

Answer:

Step-by-step explanation:

Multiply bu the conjuguate of the demonimator.

$\dfrac{3-4i}{4-5i} \\\\\\=\dfrac{(3-4i)(4+5i)}{(4-5i)(4+5i)} \\\\\\=\dfrac{12-16i+15i+20x}{16-i^2*25} \\\\\\=\dfrac{32-i}{41} \\\\\\=\dfrac{32}{41} -\dfrac{i}{41} \\\\\\$

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Step-by-step explanation:

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The negative sign indicates a decrease in attendance.

Decrease percentage = $\frac{Change}{Old\ value}*100$

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Rounding off to nearest hundredth

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Keywords: percentage, subtraction

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