Unit 1 Spiral Back Review

​Unit 1 Spiral Back Review

Please use this Quizizz as a resource to review for Check Point 3.

It can also be used to prepare for your Unit 1 Post Test. ​

These questions are only similar to the ones that may appear on the check point and/or post test.​

Two questions related to solving multi-step equations.

​First Section:

Solving Multi-Step Equations

Multiple Choice

3(2x+5)=39

• x = 4

• x = 5

• x = 3

• x = -2

Multiple Choice

3x - 32 = -7x + 28

• x = 6

• x = -6

• x = 1/6

• x = -1/6

Three questions related to solving equations with special cases.

Second Section: Special Cases

​

Multiple Choice

What is the solution to the equations?

• one solution
• no solution
• infinite solutions
• none of these

Multiple Choice

Simplify each equation. Tell whether the equation has one, no, or infinite solutions.

3x - 8 = 3(x - 4) + 1

• one

• no solutions

• infinite solutions

Multiple Choice

How many solutions does the equation 5x+17=4(3x-1) have?

• Infinitely many solutions

• One solution

• No solutions

• The number of solutions cannot be determined

Five questions related to scientific notation.

​Third Section: Scientific Notation

​

Multiple Choice

Level 1

Which of these numbers is correctly written in scientific notation?

• 1234x10^-3

• 10.5x10⁹

• 1.234x10¹¹

• .5x10⁴

Multiple Choice

Level 2

(2 x 10⁹)(4 x 10^-4)

• 8 x 10¹³

• 8 x 10³⁶

• 8 x 10⁵

• 8 x 10^-36

Multiple Choice

A factory can make 3 × 10⁴ t-shirts per day, how many t-shirts will it make in 2.5 ×10² days?

• Add

• Subtract

• Multiply

• Divide

Multiple Choice

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how many coins are there altogether?

• 1.271 x 10¹⁰
• 1.271 x 10⁹
• 1.271 x 10¹¹
• 1.271 x 10⁸

Multiple Choice

A microgram is equal to 1 x 10 ^-6 grams. How many times greater is 1 x 10² grams than a microgram? 

• 1 x 10^-8
• 1 x 10^-4
• 1 x 10⁴
• 1 x 10⁸

​One question related to Properties of Exponents.

​Fourth Section:

Properties of Exponents​

​

Multiple Select

Which of the following are equal to 36?

• $$\frac{6^2}{6^4}$$  

• $$\left(6^3\right)^{-2}\times6^8$$  

• $$\frac{6^{-2}}{6^{-4}}$$  

• $$2^2\cdot3^2$$