Question

Divide 0.0081 meters by 300 seconds and express the answer in scientific notation.

Answer 1

Answer:

$\frac{0.0081}{300}$

$2.7 \times 10^{-5}$

so this is given as

$3 \times 10^{-5}$

Explanation:

As we know that when two or more numbers are multiplied or divided then the result is always given by least number of significant numbers.

So here we have to divide two numbers

a = 0.0081

total significant digits = 2

b = 300

total significant digits = 1

as we divide two number then we got

$\frac{a}{b} = \frac{0.0081}{300}$

$\frac{a}{b} = 2.7 \times 10^{-5}$

now by rounding off the above number to one significant digit we have

$\frac{a}{b} = 3 \times 10^{-5}$

Answer 2

Hey

.0081/300 = .000027 = 2.7 x 10^-5

Hoped I Helped