Respuesta :

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Question 8

let's evaluate :

  • [tex] \dfrac{4.8 \times 10 {}^{8} }{1.2 \times 10 {}^{4} } \times 2.2 \times 10 {}^{ - 6} [/tex]

  • [tex]4 \times 10 {}^{4} \times 2.2 \times 10 { }^{ - 6} [/tex]

  • [tex]8.8 \times 10 {}^{ - 2} [/tex]

  • [tex] \dfrac{8.8}{ {10}^{2} } [/tex]

  • [tex] \dfrac{8.8}{100} [/tex]

  • [tex]0.088[/tex]

Question 9

  • [tex]{(2 {y}^{a} ) }^{4} = 16y {}^{8} [/tex]

  • [tex]16y {}^{4a} = 16 {y}^{8} [/tex]

  • [tex] {y}^{4a} = {y}^{8} [/tex]

  • [tex]4a = 8[/tex]

  • [tex]a = 8 \div 4[/tex]

  • [tex]a = 2[/tex]

value of a = 2

Rest of the solutions are in attachment ~

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