Can you check my answers please?

Question

1. A student measures the volume of a liquid and finds it to be 40ML. How many significant figures are in the measurement?
1.
2**
3
4

2.Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 by 15.0m long.
212 m2**
211.5 m2
29.1m
29.10 m

thank you :))

Answer 1

@Mrsue

Answer 2

#1. only 1 significant digit. Trailing zeros do not count.

See http://www.rpi.edu/dept/phys/Dept2/yesterday/APPhys1/sigfigs/sigfig/node152.html

#2. is correct

Answer 3

1.D
2.A
3.A
4.B
5.D

100% connexus :)

Lesson 7: Mathematics in Science
Science 8 A Unit 1: Introduction to Science 8

Answer 4

Anonymous is right

Answer 5

thank you Anonymous 100% :D

Answer 6

Thanks, Anonymous!