Pace 1097 Test

 $\sqrt{81\ }=?\$  

• 9

• 4

• 8

 $3\sqrt{\frac{8}{27}}=?$  

•  $\frac{3}{2}$  

•  $\frac{2}{3}$  

•  $\frac{4}{2}$  

 $\sqrt{\frac{1}{16}}$  

•  $\frac{3}{4}$  

•  $\frac{1}{4}$  

•  $\frac{1}{2}$  

Indicate the meaning of this expression by writing the terms with multiplication signs or parentheses. $2\ +x^2=$  

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

•  $2\cdot2\cdot x\cdot x$  

•  $2\ +\ x\cdot x$  

Indicate the meaning of this expression by writing the terms with multiplication signs or parentheses. $\left(4+x\right)^3=$  

•  $4\cdot x\cdot x\cdot x$  

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

•  $4\cdot4\cdot4\cdot x$  

Indicate the meaning of this expression by writing the terms with multiplication signs or parentheses. $a^3b^2=$  

•  $a\cdot a\cdot b\cdot b\cdot b$  

•  $a\cdot a\cdot a\cdot b\cdot b$  

•  $a\cdot b\cdot a\cdot b$  

Evaluate the expression if a=1, b=2, c=3 and d=4. $15d=$  

• 15

• 30

• 60

Evaluate the expression if a=1, b=2, c=3 and d=4. $4\sqrt{c^2d}=$  

• 24

• 16

• 4

Evaluate the expression if a=1, b=2, c=3 and d=4. $\left(a+b\right)-\left(c-d\right)=$  

• 12

• 4

• 3

Combine the terms that can be combined. $3a+2b+a+1-3=$  

•  $4a+2b-2$  

•  $4a+2b-1-3$  

•  $4a+2b+2$