Radicals and Fractional Powers

Which expression with a fractional exponent best represents √7 ?

• 7 ^½
• 7¼
• 7⅓
• 2⁷

Write as a radical expression
y¹⁄ ³

• ∛y
• y³
• √y
• 1∕ 3y

√ 64

• 4
• 6
• 9
• 8

What is the cube root of 8?

• 4
• 2
• -2
• -4

What is the value of 27^⅓?

• 27
• 9
• 3
• 1/3

What is a radical?

• a symbol indicates a root operations, such as square root, cube root

• 1

• 0

• 2

True or False: The following list contains only perfect squares.
1, 4, 9, 27, 81, 100

• True
• False

The number under the radical sign is called the ______.

• radical sign

• radicand

• factor

• exponent

According to exponent rules, when we multiply the same base we _______ the exponents.

• Multiply
• Add
• Divide
• Subtract