What is 5.5×104 multiplied by 2.2×10−8? Write the answer in scientific notation.(1 point)
Responses
12.1×10−4
12.1 times 10 superscript negative 4 baseline
1.21×10−3
1.21 times 10 negative cubed
1.21×10−4
1.21 times 10 superscript negative 4 baseline
1.21×10−5
1.21×10−5
To multiply numbers in scientific notation, you can multiply their coefficients and add their exponents.
To calculate 5.5 × 10^4 multiplied by 2.2 × 10^-8:
- Multiply the coefficients: 5.5 × 2.2 = 12.1
- Add the exponents: 4 + (-8) = -4
So, the answer is 12.1 × 10^-4, which can be written in scientific notation as 1.21 × 10^-3.
To multiply numbers in scientific notation, you multiply the coefficient (the numbers before the "×10") and add the exponents.
In this case, you would multiply 5.5 by 2.2 to get 12.1. Then, you add the exponents: 4 + (-8) = -4.
So, the answer is 1.21 × 10^(-4), which can be read as "1.21 times 10 to the power of negative 4" or "12.1 times 10 to the power of negative 5" in scientific notation.