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1 year ago

Seema had 150 marbles.rani had 20 marbles more than seema.alok had 50 marbles lass than rani how many marbles did rani have

Mathematics

1 answer:

crimeas [40]1 year ago

8 0

Answer:

120

Step-by-step explanation:

seema 150 marbles

rani 20 more marbles

alok 50 less marble

150+20=170_rani

170-50=120_alok

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What is the modulus of |9+40i|?

Talja [164]

Answer:

Step-by-step explanation:

We know that complex numbers are a combination of real and imaginary numbers

Real part is x and imaginary part y is multiplied by i, square root of -1

Modulus of x+iy = $\sqrt{x^2+y^2}$

Here instead of x and y are given 9 and 40

i.e. 9+40i

Hence to find modulus we square the coefficients add them and then find square root

|9+49i| = $\sqrt{9^2+40^2} =\sqrt{1681}$

By long division method we find that

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Viefleur [7K]

Use pythagorean’s theorem
as you can see it’s a right isosceles triangle

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2 years ago

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Isolate k by dividing both sides by 8

8k=4/9
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4/72 -> 1/18

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