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4 years ago

2. What are some differences between rational and irrational numbers?

Mathematics

1 answer:

sergey [27]4 years ago

8 0

Answer:

An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero. While an irrational number cannot be written in a fraction.

Step-by-step explanation: Cuz i said so

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PLEASEEEE If z=-1-sqrt3i and z^6 = a+bi, then a=___ and b=___.

siniylev [52]

Answer:

a = 94

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Step-by-step explanation:

Given z = $-1-i\sqrt{3}$

$z^{6}=(z^{3})^{2}$

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$=[-(1+i\sqrt{3})^3]^{2}$

$=[(1+i\sqrt{3})^3]^2$

$=[(1)^3+(i\sqrt{3})^3+3(1)^2(i\sqrt{3})+3(1)(i\sqrt{3})^2]^2$ [(a + b)³ = a³ + b³ + 3a²b + 3ab²]

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= [1 - 3 + 3i√3 - 9]²

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= 121 - 66i√3 + 27i²

= 121 - 66i√3 - 27

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Comparing it with (a + bi),

a = 94 and b = -66√3

7 0

3 years ago

Solve -5.55-8.55c+4.35c for me please

serious [3.7K]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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3 years ago

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Answer:

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4 years ago

A town in east Texas received 15 inches of rain in two weeks. If it kept raining at this rate for a 31−day month, how much rain

blsea [12.9K]

Answer:

33 inches

Step-by-step explanation:

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Step 1: Represent the amount of rain by n.

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3 years ago