Question

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Answer 1

The number of significant figures in the numbers are

• 100 cm = 1 significant digit
• 0.006700 cm = 2 significant digits
• 450. cm = 3 significant digits

How to determine the number of significant figures in the following numbers?

As a general rule, the zeros before and after the non-zero figures are not significant.

Using the above rule, we have:

• 100 cm = 1 significant digit
• 0.006700 cm = 2 significant digits
• 450. cm = 3 significant digits

How to round the following numbers to the correct number of significant figures

Using the above rule in (a), we have:

• 123g to show 1 sig fig = 100 g
• 0.19851m to show 2 sig figs = 0.2 m
• 0.0057034L to show 3 sig figs = 0.005703 L

How to report the following answers with correct significant figures

We have:

(12.93cm) x (2.34cm) x (8cm) = 242.05 cm^3 because 12.93 has 4 significant figures

67.0m / 2.18s = 30.7 m/s because 2.18 has 3 significant figures

How to convert the following metric to metric

450mL = 0.45 L

because 1 mL = 0.001 L

2.3 dm = 0.00023 km

because 1 dm = 0.0001 km

0.120cg = 1.2 mg

because 1 cg = 10 mg

6700L = 670000 cL

because 1 L = 100 cL

How to convert the following metric

a. 2.34miles = 3.76 km (1mile = 1.61km) -- given

b. 5.3ft = 161.544 cm(2.54cm = 1 in)

Because 1 ft = 30.48 cm

Read more about significant figures at:

brainly.com/question/24491627

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