Question

12 question (1 point) open ebook section 1.7
perform the following calculation. make sure to pay attention to significant figures. your answer should be in scientific notation. after you enter the significand, press \e\ to open the exponent box.
1st attempt
see periodic table see hint
$$ \frac { 1 2 9 \times 0.9 9 } { 5 3 6 5 } \times \frac { 0.0 2 0 8 3 } { 3 2.9 5 } = $$

Explanation:

Step1: Calculate the numerator of the first fraction

$$129\times0.99 = 127.71$$

Step2: Calculate the first fraction

$$\frac{127.71}{5365}\approx0.0238$$

Step3: Calculate the second fraction

$$\frac{0.02083}{32.95}\approx0.000632$$

Step4: Multiply the two fractions

$$0.0238\times0.000632 = 1.50\times10^{-5}$$

Answer:

$1.50e - 5$