Radicals, Rationals and Solving Radical Equations

Which of the following is the square root of 196?

• 10

• 13

• 14

• 15

Tags

CCSS.8.EE.A.2

Solve this equation.

• y = 2

• y = 4

• y = −2

• y = −4

Tags

CCSS.HSA.REI.A.2

Solve for x.

• −13

• 4

• 19

• Extraneous root

Tags

CCSS.HSA.REI.A.2

Subtract. 15√5 - 17√5

• 32√10

• 32√5

• −2√5

• −2

Simplify. - 3√20 - √5

• −√5

• −√15

• −7√5

• Already simplified

What is the simplified form of √18+ 4√8 − √50?

• 13√2

• 6√2

• 7√2

• 15√2

The radius, r, of a sphere is related to the surface area, A by the equation shown. What is the surface area if the surface area is 3.3 cm?

• 67 cm³
• 95 cm³
• 137 cm³
• 166 cm³

Tags

CCSS.8.EE.A.2

Solve this equation.

• x = 3

• x = 0

• x = 1/3

• x = −3

Tags

CCSS.HSA.REI.A.2

Find the perimeter of the triangle below.

• 4√5

• 4√5 − √3

• 4 + 2√5

• 20

Tags

CCSS.7.NS.A.1D

A square stepping stone in Atlanta’s Centennial Olympic Park measures 42 feet on a side. Which of the following is TRUE about the area of the square stone?

• The area is a perfect square

• The area is a rational number

• The area is an irrational number

• The area cannot be determined

Tags

CCSS.7.EE.B.3