ddhkfjtccs ddhkfjtccs 22-10-2022 Mathematics Answered Which shows the expression below simplified? 0.0042 - (1.2 x 10-6) A. 3 x 10^-3 B. 1.1958 x 10^-6 C. 4.1988 x 10^-6 D. 4.1988 x 10^-3