Surface Area and Scientific Notation

The video tutorial explains how to solve a word problem involving scientific notation. It compares the surface areas of two lakes, Lake A and Lake B, and calculates how many times Lake B can fit into Lake A. The tutorial demonstrates two methods for entering numbers into a calculator and converting the result into scientific notation. The final answer is expressed as 1.23 times 10 to the 2 meters squared.

What is the surface area of Lake A in scientific notation?

• 3.36 x 10^8 m²

• 4.14 x 10^10 m²

• 10 x 10^10 m²

• 1.23 x 10^2 m²

What is the surface area of Lake B in scientific notation?

• 1.23 x 10^2 m²

• 3.36 x 10^8 m²

• 10 x 10^8 m²

• 4.14 x 10^10 m²

What operation is needed to find how many times Lake B fits into Lake A?

• Division

• Multiplication

• Subtraction

• Addition

What is the result of dividing 4.14 by 3.36?

• 1.23

• 1.2321

• 1.21

• 1.25

What is the result of 10^10 divided by 10^8?

• 10^2

• 10^18

• 10^0

• 10^8

What is the final answer in scientific notation for the division of Lake A by Lake B?

• 1.23 x 10^8 m²

• 1.23 x 10^0 m²

• 1.23 x 10^2 m²

• 1.23 x 10^10 m²

Which button should be pressed after entering 4.14 x 10 in the second method?

• x to the y

• Equals

• Multiply

• Clear

What is the final answer obtained using the second method before converting to scientific notation?

• 1232.1

• 12.321

• 1.23

• 123.21

How many decimal places do you move to convert 123.21 to scientific notation?

• Two places to the left

• Two places to the right

• One place to the right

• Three places to the left

What power of 10 is used when converting 123.21 to scientific notation?

• 10^1

• 10^2

• 10^0

• 10^3