If a jet's cruising altitude is 32,200 ft (to three significant figures), this distance in km is 9.82 km.
<h3>What are significant figures?</h3>
Significant figures are the number of digits in a value, often a measurement, that contributes to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.
In this case, given the conversion factors from miles to kilometres and from miles to feet, we can directly compute the jet’s cruising altitude in kilometres as shown below:
=9.82 km
Learn more about the significant figures here:
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Answer:
Density, 
Explanation:
Given that,
Mass of a flask is 450 g
Volume of benzene added to the flask is 145 mL or 145 cm³
The weight of the flask and benzene is found to be 754 g.
We need to find the density of the benzene.
Weight of benzene added = total weight of flask and benzene-mass of flask
m = 754 g - 450 g
m = 304 g
Density = mass/volume
So,
So, the density of the benzene is 
.
Answer:- 1.050 mL
Solution:- Volume is an additive property. So, we add all the three given volumes to get the total volume.
Total volume = 
Since in addition, we go with least decimal places, the answer must have three decimal places as all the given numbers have three decimal places each.
Hence, the total volume should be reported as 1.050 mL.
It should be the digestive system as it absorbs the nutrients of the food into your body.
