Question

what is the number 0.00352 written in scientific notation?
a $352 \times 10^{-5}$
b $3.52 \times 10^{-3}$
c $3.52 \times 10^{3}$
d $352 \times 10^{5}$

Explanation:

Step1: Define scientific notation

Scientific notation is $a \times 10^n$, where $1 \leq a < 10$ and $n$ is an integer.

Step2: Adjust 0.00352 to meet $a$ requirement

Move decimal 3 places right: $a = 3.52$

Step3: Determine exponent $n$

Since decimal moved right, $n = -3$

Step4: Write final notation

$3.52 \times 10^{-3}$

Answer:

B. $3.52 \times 10^{-3}$