a student measures a rectangular room to be 20.00 m x 17.16 m which of the following the numbers below represents the rooms area with the correct number of significant figures
a
b
c
d
c
b
b
d
c
a
c
c
d
skeptical
inference
invention or technology
These answers are here for the sole reason of checking answers. do the test before looking at the answers. I came here with a finished test wanting to see if my answers were correct, if not, why and how I perceived the wrong answer to be right.
Make sure this is the lesson you are doing: Lesson 13: Introduction to science unit test
Science 8 A; Unit 1: Introduction to Science 8
Total Multiple choice questions: 13
Total open-ended questions: 7 (including the three questions with a word bank)
1. a
2. b
3. c
4. d
5. c
6. b
7. b
8. d
9. c
10. a
11. c
12. c
13. d
14. skeptical
15. inference
16. invention or technology
The rest is open-ended and can be double checked through research and/or your notes about the unit. I will not be putting my open ended (questions 17-20) answers here for the reason of people copy and pasting my answers onto their test.
Jazzzmin is right
don't know, but it better be something like 343.2 with 4 sig digs.
To find the area of the rectangular room, you simply multiply its length by its width. In this case, the length is given as 20.00 m and the width is given as 17.16 m.
To determine the correct number of significant figures in the result, you need to consider the given measurements. The rule is that the result should have the same number of significant figures as the measurement with the smallest number of significant figures.
In this case, the width has the fewest significant figures, with only four (17.16 m). Therefore, the correct number of significant figures for the area would be four as well.
Now, we can perform the multiplication:
Area = length × width
= 20.00 m × 17.16 m
= 343.2 m² (rounded to four significant figures)
Therefore, the correct representation of the room's area with the appropriate number of significant figures is 343.2 m².