Mathematics
20.04.2023 12:28
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What is 0.7, 7/9, 7/8 in order from greatest to least

What is 0.7, 7/9, 7/8 in order from greatest to least
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briannabo08
briannabo08
4,6(30 marks)
Simple...

change them all into fractions or decimals...

0.7---> 0.7

\frac{7}{9}-->>0.77

\frac{7}{8}--->>0.875

Ordering from greatest to least....

0.875-->>0.77-->>0.7

\frac{7}{8}-->>\frac{7}{9}-->>0.7

Thud, your answer.
philyshahill
philyshahill
4,8(31 marks)

-  \frac{36}{65}  +  \frac{63}{65} i

Step-by-step explanation:

\frac{9}{ - 4 - 7i}

➡️ \frac{9( - 4 + 7i)}{( - 4 - 7i)  \times ( - 4 + 7i)}

➡️ \frac{ - 36 + 63i}{16 - 49 {i}^{2} }

➡️ \frac{ - 36 + 63i}{16 - 49 \times ( - 1) }

➡️ \frac{ - 36 + 63i}{16 + 49}

➡️ \frac{ - 36 + 63i}{65}

➡️ -  \frac{36}{65}  +  \frac{63}{65} i

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