What is 5.5×10^4 multiplied by 2.2×10^−8 ? Write the answer in scientific notation.
1. 1.21 x 10^-3
2. Multiply the coefficients and add the exponents of the powers of 10
3. 1.4478 x 10^5 mm2
4. 7.35 x 10^6 ml
5. 2.1 x 10^-5
2. Multiply the coefficients and add the exponents of the powers of 10:
(5.5 x 10^4) * (2.2 x 10^-8) = 12.1 x 10^-3.
So, the answer is 1.21 x 10^-3.
To multiply numbers in scientific notation, you can multiply the coefficients and add the exponents of the powers of 10.
In this case, we have:
5.5 x 10^4 multiplied by 2.2 x 10^-8
First, let's multiply the coefficients:
5.5 x 2.2 = 12.1
Next, let's add the exponents of the powers of 10:
10^4 multiplied by 10^-8 can be simplified to 10^(4-8) which is 10^-4.
Putting it all together, the answer in scientific notation is:
1.21 x 10^-4
So, the correct answer is 1. 1.21 x 10^-3.
To multiply numbers in scientific notation, we first multiply the coefficients and then add the exponents of the powers of 10.
In this case, we have:
5.5×10^4 multiplied by 2.2×10^−8.
Step 1: Multiply the coefficients.
5.5 × 2.2 = 12.1
Step 2: Add the exponents.
10^4 × 10^−8 = 10^(4-8) = 10^(-4)
So, the answer is 12.1 × 10^(-4).
Now, we can write this in scientific notation by moving the decimal point one place to the left, and changing the exponent to 10^(-3):
1.21 x 10^(-3).
Therefore, the correct answer is option 1: 1.21 x 10^-3.