Practice problem
What is (−9×1010)(3×10−2)(-9\times 10^{10})(3\times 10^{-2})(−9×1010)(3×10−2) in scientific notation?
−2.7×109-2.7\times 10^{9}−2.7×109
−6×10−20-6\times 10^{-20}−6×10−20
2.7×10−92.7\times 10^{-9}2.7×10−9
−27×108-27\times 10^{8}−27×108
Type a concept, like “slope” or “photosynthesis”.
