Which of the following expressions is written in scientific notation?
a) \(73.4 \times 10^5\)
b) \(0.09 \times 10^7\)
c) \(80 \times 10^3\)
d) \(4.22 \times 10^{-3}\)
What is scientific notation?
Answer (3)
10)\\\\b)\ 0.09\cdot10^7-NO-(0.09<1)\\\\c)\ 80\cdot10^3-NO-(80>10)\\\\d)\ 4.22\cdot10^{-3}-YES"> a ⋅ 1 0 n i s sc i e n t i f i c n o t a t i o n i f a ∈ ⟨ 1 ; 10 ) a ) 73.4 ⋅ 1 0 5 − NO − ( 73.4 > 10 ) b ) 0.09 ⋅ 1 0 7 − NO − ( 0.09 < 1 ) c ) 80 ⋅ 1 0 3 − NO − ( 80 > 10 ) d ) 4.22 ⋅ 1 0 − 3 − Y ES
Lesson 2: Scientific Notation quick check
D) 4.22x10^-3
A) 7.08x10^-8
A) 6.1x10^-7
D) 1.25x10^-4
5.C) Doubling n results in doubling the value of the expression.
B) 2.45x10^5
7.A) 3x10^3
Please use this for double checking your answers!
The expression written in scientific notation is Option d: 4.22 ⋅ 1 0 − 3 , as it follows the required format where the coefficient is between 1 and 10. The other options do not meet this criterion. Scientific notation allows for easier representation and understanding of very large or small numbers.
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