Respuesta :

DᴀʀᴋPᴀʀᴀᴅᴏx

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Question 4 :

The property used here, is distributive property.

Question 5 :

The expression representing the population of town is :

  • [tex] \dfrac{6 \times 10 {}^{5} }{15}[/tex]

  • [tex]0.4 \times 10 {}^{5} [/tex]

  • [tex]4 \times 10 {}^{4} [/tex]

correct choice is B

Question 6 :

let's evaluate :

  • [tex] {5}^{ - 8} \times 5 {}^{4} [/tex]

  • [tex] \dfrac{5 {}^{4} }{5 {}^{8} } [/tex]

  • [tex] \dfrac{1}{5 {}^{4} } [/tex]

correct choice is A

Question 7 :

let's solve for n :

  • [tex] {2}^{2} \times {2}^{n} ={( 2 {}^{4}) } ^{3} [/tex]

  • [tex]2 {}^{2 + n} = 2 {}^{12} [/tex]

  • [tex]2 + n = 12[/tex]

  • [tex]n = 12 - 2[/tex]

  • [tex]n = 10[/tex]

correct choice is C

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