Question

What is the value of (5.3x10 to the power of 4)(4.2x10 to the power of 3) in scientific notation

Answer 1

Answer:

$2.226 \times {10}^{8}$

Step-by-step explanation:

$(5.3 \times {10}^{4} )(4.2 \times {10}^{3} ) \\ = 5.3 \times 4.2 \times {10}^{4 + 3} \\ = 22.26 \times {10}^{7} \\ = 2.226 \times {10}^{8}$

Answer 2

Answer:C

Step-by-step explanation: