Question

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Answer 1

cube root of(10)^9=(10^3)
cube root of (-5)^6x(-4)^3=(-5)^2x(-4)
                                          =25(-4)
                                              =-100
cube root of  (-0.001331)=-0.11
cube root of   (0.002197)=0.13

Answer 2

a) cube root of 10^9 =

$\sqrt[3]{10 {}^{2} } = (10 {}^(9 \times 2 \times \div 3) = 10 {}^{2} = 100$
b)cube root of (-5)^6×(-4)^3= -5 to the power of 6×2÷3 ×-4 to the power of 3×2÷3=-5 to the power of 4 ×4 to the power2= 625×16=10000