8th Grade Final Review

Which of these simplifies    $x^3x^4$  

•  $x^{12}$  

•  $x^7$  

Which of the following simplifies   $\frac{x^{12}}{x^3}$  

•  $x^4$  

•  $x^9$  

Which of the following is the same as   $x^{-2}$  

•  $\frac{1}{x^2}$  

•  $\frac{1}{x^{-2}}$  

Tags

CCSS.8.EE.A.1

 $x^0\ =$  

• 0

• 1

Tags

CCSS.8.EE.A.1

 $\left(x^7\right)^4\ =$  

•  $x^{28}$  

•  $x^{11}$   

Tags

CCSS.HSA.APR.A.1

Which of the following is 0.005 in Scientific notation

• $5.0\ x\ 10^{-2}$

• $5.0\ x\ 10^{-3}$

Tags

CCSS.8.EE.A.3

This is how you find the average of a given group of numbers.

• Add them up

• Add them up and divide by 2

• Add them up and divide by however number of numbers there is

• Multiply them all

The hypotenuse (c) is always the longest side across from the right angle

• True

• False

If 3 and 4 are the legs of a right triangle, what is the hypotenuse?   $a^2+b^2=c^2$  

• 25

• 6

• 5

• 4

Tags

CCSS.8.G.B.8

If a triangle has angles 60 and 100. What is the measure of the 3rd angle?

• 100

• 80

• 20

• 200

Tags

CCSS.8.G.A.5