Solve Problems Involving Radicals

Which equation represent the problem: Find the number such that twice its square root is 14? 

•  $2\sqrt{x}\ =\ 14$ 
  

•   $\sqrt{2x}\ =\ 14$ 
  

•    $2\ +\sqrt{x}\ =\ 14$ 

•  $\sqrt{x\ +\ 2}\ =\ 14$   
  

Tags

CCSS.HSA.REI.A.2

Find the number such that twice its square root is 14.

• 7

• 28

• 49

• 14

Tags

CCSS.8.EE.A.2

Which equation represents the problem below?
"The shorter leg of a right triangle is 9 cm and the longer leg is 12 cm. How long is the hypotenuse?"   

•   $x^2\ =\ 12^2\ -\ 9^2$ 
  

•  $x^2\ +\ 12^2\ =\ 9^2$ 

•  $x^2\ =\ 9^2\ +\ 12^2$  

•   $x\ =\ 12^2\ +\ 9^2$  
  

Tags

CCSS.8.G.B.7

The shorter leg of a right triangle is 9 cm and the longer leg is 12 cm. How long is the hypotenuse?

•  $3\sqrt{7}$  cm

• 15 cm

• 11 cm

•  $\sqrt{63}$ cm

Tags

CCSS.8.G.B.7

What  formula can be used to solve the problem: "What is the length of the side of a square whose diagonal is 18cm?"

•  $A\ =\ s^2$  
  

•    $A\ =\pi r^2$  
  

•    $c^2\ =\ a^2\ +\ b^2$ 
  

•    $A=\ \frac{1}{2}bh$ 
  

Tags

CCSS.8.G.B.8

 Which equation represent the problem: "What is the length of the side of a square whose diagonal is 16cm?"

•   $16\ =x^2$ 
  

•     $16^2\ =\ x^2\ +\ x^2$  
  

Tags

CCSS.8.G.B.8

 What is the length of the side of a square whose diagonal is 16cm?

•     $8\sqrt{2}\ cm$ 
  

Tags

CCSS.8.G.B.8

Tags

CCSS.8.EE.A.2

Find the side of the square whose area is 200 square inches.

Tags

CCSS.8.EE.A.2

You have P1000 and want it to grow to P2,000 in 5 Years, what interest rate do you need? The formula is given where FV is future value, PV is is present value and n is the term in years.

• 1.48%

• 14.87%

• 0.14%

• 13.8%