Question

Find each product or quotient. Use significant digits. 0.0505m * 665m a. 33.6 m2 b. 33.58 m2 c. 33.50 m2 d. 33.582 m2

Answer 1

The answer to this I believe is c

Answer 2

d.
`33.5825m^2`

Explanation:

We have been given an expression
`0.0505m* 665m`. We are asked to find the product of our given expression using significant figures.

Upon multiplying both terms of our given expression, we will get:

`0.0505m* 665m`

`0.0505* 665m^2`

`33.5825m^2`

Now, we will use significant figures rule to give our final answer. The rules are:

• Any non-zero digits are significant. The zeros between two digits are always significant.
• Leading zeros (zeros before non-zero numbers) are not significant.
• Trailing zeros (zeros after non-zero numbers) are significant, if they are after decimal. The trialing zeros without decimal are not significant.

We can see that our product has 4 non-zero digits after decimal, therefore, these are significant digits and option 'd' is the correct choice.