Question

bantu dong kak plss
oh ya ini foto nya guru aku yg fotoin jadi bgitu deh ​

Answer 1

Jawaban:

No. 2

[tex]( \frac{4}{5} \times 1 \frac{2}{3} ) + (6 \frac{3}{7} \div 4.5) \\ = ( \frac{4}{5} \times \frac{5}{3} ) + ( \frac{45}{7} \div \frac{45}{10} ) \\ = \frac{20}{15} + ( \frac{45}{7} \times \frac{10}{45} ) \\ = \frac{20}{15} + \frac{450}{315} \\ = \frac{420 + 450}{315} \\ = \frac{870}{315} \\ = 2 \frac{240}{315} \\ = 2 \frac{16}{21} [/tex]

No. 3

[tex] {25}^{ \frac{3}{2} } \times {9}^{ \frac{1}{2} } \\ = { ({5}^{2}) }^{ \frac{3}{2} } \times { {(3}^{2}) }^{ \frac{1}{2} } \\ = {5}^{2 \times \frac{3}{2} } \times {3}^{2 \times \frac{1}{2} } \\ = {5}^{3} \times {3}^{1} \\ = 125 \times 3 \\ = 375[/tex]

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