Question 1. Which of the following statements describes the aim of the person who threw the dart shown in the picture.
A. The person's aim was both precise and accurate
B. The person's aim was precise, but it was not accurate
C. The person's aim was accurate, but it was not precise
D. The person's aim was neither precise nor accurate
Question 2. A student measures the volume of a liquid and finds it to be 40 ml. How many significant figures are in the measurement?
Stacey Warren - Expert brainly.com
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Question 3. Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m long.
A. 212 m
B. 211.5 m
C. 29.1 m
D. 29.10 m
Question 4. The Graph above (number 4) shows Jack's mass over a five month period.
Based on the trend in the data, what do you predict will happen to Jack's mass the subsequent month?
A. Jack's mass will increase
B. Jack's mass will decrease
C. It is impossible to predict because there is no trend in Jack's Mass
D. The next month's data will be anomalous.
Question 5. A scientist collected the data shown in the graph above (aka the pic for question 5) How is the graph useful to the scientist.
A. The graph shows the scientist that the data has a upward trend.
B. The graph shows the scientist that the data point at 2.5 seconds in anomalous.
C. The graph shows the scientist that the data creates a linear graph.
D. The graph shows the scientist that there does not appear to be a trend inthe data so the time and mass are probably not related
Q3 on significant figures relates to chemistry. So I'll offer some hints.
Significant figures represent the number of digits that are meaningful in a number.
For example, 2.45 has three significant figures, while 2.500 has four. However, 03.4 has
only two because the leading zero is not significant (meaningful).
There are many other rules, see, for example,
The number of significant figures of a product is the lesser of the multiplicands.
For example, 2.4 \(\times\) 3.333333333=7.9999999992, but it only has significant figure equal to the lesser of the multiplicands, namely 2 for 2.4 and 10 for the 3.333333333. So the result is rounded to two significant figures, 8.0.