Grade 10 End of Week 14 Assessment.

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The volume of the shade can be written as $a\sqrt{15}$  

Write down the value of a

• a = 67. b = -16

• a = -67. b = 16

• a = -16. b = 67

• a = 16. b = -67

• a = 4, b = 11

• a = 11, b = 4

• a = 100, b = 2

• b = 200, a = 2

Rationalize the denominator

• $\frac{20\ +5\sqrt{2}}{14}$

• $\frac{10\ +\sqrt{2}}{7}$

• $\frac{10\ -\ 5\sqrt{2}}{14}$

• $\frac{20\ -\ 5\sqrt{2}}{7}$