am is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5×10^9 years. The half-life of Uranium-233 is 1.6×10^5 years. He computed how much greater the half-life of Uranium-238 is than that of Uranium-233, and his calculator displayed the number 2.81E4. What is this number in scientific notation?(1 point)

Question

am is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is  4.5×10^9  years. The half-life of Uranium-233 is  1.6×10^5  years. He computed how much greater the half-life of Uranium-238 is than that of Uranium-233, and his calculator displayed the number 2.81E4. What is this number in scientific notation?(1 point)
Responses

GPT-4o mini · Answer

The number 2.81E4 is already in scientific notation. In standard scientific notation, it is expressed as $ 2.81 \times 10^4 $. So, the answer is $ 2.81 \times 10^4 $.