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Pie
3 years ago
14

Help me help!!!!!!please

Mathematics
1 answer:
madam [21]3 years ago
3 0
B...................
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Root 225 rational or irrational? plzz help urgent.
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Is the Square Root of 225 Rational or Irrational? 225 can be expressed as the ratio of two integers. As 225 can be expressed as 225 = 225/1. Thus 225 is rational.
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Write as a unit rate: Four notebooks for $2.50
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B. $1.60 per notebook

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4 notebooks ÷ $2.50 (4 notebooks cost) = $1.60 per notebook

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Michaela created a model of a city park. For the model, 1 inch represents 5
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400

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Find the distance using the modulus of the difference between z1 = -8 + 3i and z2 = 7 - 4i. Show all work for full credit.
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Answer:

\sqrt{274}

Step-by-step explanation:

Given z_1=-8+3i,\ z_2=7-4i.

1. Find the difference z_1-z_2:

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This complex number has real part Rez=-15 and imaginary part Imz=7.

2. The modulus of complex number z is

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