January 21

A circle has a radius of

 $5x^3y^4$  cm.  The area of a circle can be found using the formula   $A=\pi r^2$  .  What is the area of this circle in square centimeters?

•  $10x^6y^8\pi$  

•  $25x^5y^6\pi$  

•  $25x^6y^8\pi$  

•  $10x^5y^6\pi$  

Which expression is equivalent to 

 $\frac{8x^7y}{4x^3}\cdot\frac{3\left(n^3\right)^4}{y^{-3}}$  

•  $8x^{11}y^4n^{12}$  

•  $8x^{11}y^{-4}n^7$  

•  $6x^4y^{-4}n^7$  

•  $6x^4y^4n^{12}$  

 $x^2-36$  

What is the equivalent expression to

•  $\left(x-3\right)\left(x-12\right)$  

•  $\left(x+6\right)\left(x-6\right)$  

•  $\left(x-9\right)\left(x+4\right)$  

•  $\left(x-18\right)\left(x+2\right)$  

 $x^2-49$  

What is the equivalent expression to

•  $\left(x-1\right)\left(x-49\right)$  

•  $\left(x+7\right)\left(x-7\right)$  

•  $\left(x+7\right)\left(x+7\right)$  

•  $\left(x-20\right)\left(x+29\right)$  

factor the trinomial
 $x^2-5x-24$  

•  $\left(x-8\right)\left(x+3\right)$  

•  $\left(x+6\right)\left(x-4\right)$  

•  $\left(x+8\right)\left(x-3\right)$  

•  $\left(x-6\right)\left(x+4\right)$  

 $5x^2-7x+2$  

Factor the trinomial

•  $\left(5x-2\right)\left(x-1\right)$  

•  $\left(5x+2\right)\left(x+1\right)$  

•  $\left(5x+2\right)\left(x-1\right)$  

•  $\left(5x-2\right)\left(x+1\right)$  

What is the domain of the graph

• $1<x<7$

• $2\le x\le7$

• $2<x\le7$

• $2\le x<7$

 $\sqrt{243}$  

Which expression is equivalent to

•  $8\sqrt{2}$  

•  $8\sqrt{3}$  

•  $9\sqrt{2}$  

•  $9\sqrt{3}$  

 $\sqrt{128}$  

Which expression is equivalent to

•  $8\sqrt{2}$  

•  $8\sqrt{3}$  

•  $6\sqrt{2}$  

•  $6\sqrt{3}$  

 $\sqrt{75}$  

Which expression is equivalent to

•  $6\sqrt{2}$  

•  $7\sqrt{3}$  

•  $5\sqrt{3}$  

•  $4\sqrt{2}$