What is 5.5×104 multiplied by 2.2×10−8 ? Write the answer in scientific notation.(1 point)

Question

Responses

12.1×10−4
12.1 times 10 superscript negative 4 baseline

1.21×10−4
1.21 times 10 superscript negative 4 baseline

1.21×10−3
1.21 times 10 negative cubed

1.21×10−5

Answer 1

1.21 times 10 superscript negative 5 baseline

Answer 2

When multiplying two numbers in scientific notation, what operations do you use on the coefficients and the exponents of the powers of 10?(1 point)
Responses

Add the coefficients and add the exponents of the powers of 10.
Add the coefficients and add the exponents of the powers of 10.

Multiply the coefficients and multiply the exponents of the powers of 10.
Multiply the coefficients and multiply the exponents of the powers of 10.

Add the coefficients and multiply the exponents of the powers of 10.
Add the coefficients and multiply the exponents of the powers of 10.

Multiply the coefficients and add the exponents of the powers of 10.