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2 years ago

Classify: 2 7/9 A. real number B. whole number C. irrational number D. integer

Mathematics

2 answers:

GarryVolchara [31]2 years ago

8 0

Its not B or C

I thinks its A

SVEN [57.7K]2 years ago

8 0

2 7/9 = 25/9 = 2.77778

answer is A. real number

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Y_Kistochka [10]

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sergiy2304 [10]

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Rudik [331]

$T_n = a_1 + d(n - 1)
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$T_n = 52 + 12(n - 1)$

$T_n = 52 + 12n - 12$

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2 years ago

Type the correct answer in the box. Round off your answer to the nearest integer.

Ugo [173]

Answer:

59°

Step-by-step explanation:

In triangle DAB, by Pythagoras theorem:

$DB= \sqrt {6^2 +5^2} =\sqrt{36+25}=\sqrt{61}$

Next, in triangle DCB, by Pythagoras theorem:

$DB= \sqrt {(\sqrt {61} )^2 - 4^2} =\sqrt{61-16}=\sqrt{45}$

Now, by sin rule.

$\frac{ \sin \: p}{ \sqrt{45} } = \frac{ \sin 90 \degree}{ \sqrt{61} } \\ \\ \frac{ \sin \: p}{ 6.70820393} = \frac{ 1}{ 7.81024968 } \\ \\ \sin \: p = \frac{ 6.70820393}{7.81024968} \\ \\ \sin \: p = 0.858897501 \\ \\p = 59.19301883 \degree \\ \\ p \approx 59 \degree$

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2 years ago