Staar Practice RC1

Which expression is equivalent to $\left(144k^2r^{14}\right)^{\frac{1}{2}}$  

•  $12kr^7$  

•  $72k^2r^{14}$  

•  $144kr^7$  

•  $12k^2r^{14}$  

Which expression is equivalent to $-28x^2+35x$  

•  $7x\left(4x+5\right)$  

•  $-7x\left(4x-5\right)$  

•  $7x\left(4x-5\right)$  

•  $-7x\left(4x+5\right)$  

Which expression is equivalent $x^2-17x-60$  

•  $\left(x-20\right)\left(x+3\right)$  

•  $\left(x-20\right)\left(x-3\right)$  

•  $\left(x-5\right)\left(x-12\right)$  

•  $\left(X+5\right)\left(x-12\right)$  

 $Given\ f\left(x\right)=\frac{1}{3}\left(4-x\right)^2,\ What\ is\ the\ value\ of\ f\left(16\right)?$  

• 133.33

• 11

• 48

• -254.67

Solve:  $\frac{x^{-12}}{x^{-15}}$  

•  $x^{27}$  

•  $\frac{1}{x^{27}}$  

•  $x^3$  

•  $\frac{1}{x^3}$  

Which expression is equivalent to $\left(h^2+9h-1\right)\left(-4h+3\right)$  

•  $-4h^3-33h^2+31h-3$  

•  $4h^3+39h^2-23h-3$  

•  $-4h^3-39h^2+23h+3$  

•  $4h^3+33h^2-31h+3$  

 $\frac{10x^5w^7}{2w^3}\cdot\frac{4\left(x^6\right)^2}{w^{-5}}$  

•  $\frac{32x^7}{w}$  

•  $20x^{17}w^9$  

•  $32x^{7^{ }}w^9$  

•  $20xw$  

 What is equivalent to $\sqrt{96}$ 

•  $24$  

•  $8\sqrt{6}$  

•  $48$  

•  $4\sqrt{6}$  

What table does NOT show y as a function of x?

• F

• G

• H

• J

Find the mistake.

• Step 1

• Step 2

• Step 3

• Step 4