f ( x ) = l o g b x D = R i s f a l se . correc t d o main : D : x ∈ R + an d b ∈ R + an d b = 1.
The statement that the domain of F ( x ) = lo g b x is the set of all real numbers is false. The correct domain is the set of all positive real numbers, written as D : x ∈ R + . This is because logarithms are only defined for positive arguments and the base must be a positive number not equal to 1.
;
DiketahuiMembeli 45kg dengan harga Rp 540.000Dijual Rp 15.000 per kgDitanyaPresentase keuntunganDijawabKeuntungan[tex] = 15.000 \times 45 - 540.000 \\ = 675 .000 - 540.000 \\ = 135.000[/tex]Presentase[tex] = \frac{135.000}{540.000} \times 100\% \\ \\ = 0.25 \times 100\% \\ = 25\%[/tex]KesimpulanMaka jawabannya 25%