Lesson 13: Practice Problems
Problem 1
Write each number in scientific notation.
Problem 2
Perform the following calculations. Express your answers in scientific notation.
Problem 3
Jada is making a scale model of the solar system. The distance from Earth to the moon is about
On a windowsill in the same room?
In her kitchen, which is down the hallway?
A city block away?
Explain your reasoning.
Problem 4 From Unit 4 Lesson 12
Here is the graph for one equation in a system of equations.
Write a second equation for the system so it has infinitely many solutions.
Write a second equation whose graph goes through
so that the system has no solutions. Write a second equation whose graph goes through
so that the system has one solution at .