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What are Perfect Cubes. What are Perfect Cubes?. 1 3 = 1 x 1 x 1 = 1 2 3 = 2 x 2 x 2 = 8 3 3 = 3 x 3 x 3 = 27 4 3 = 4 x 4 x 4 = 64 5 3 = 5 x 5 x 5 = 125 and so on and on and on…. 2 x 2 = 4. 2. 2. 3 x 3 = 9. 3. 3. 4 x 4 = 16. 4. 4. 5 x 5 = 25. 5. 5. 2.
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What are Perfect Cubes www.assignmentpoint.com
What are Perfect Cubes? • 13 = 1 x 1 x 1 = 1 • 23 = 2 x 2 x 2 = 8 • 33 = 3 x 3 x 3 = 27 • 43 = 4 x 4 x 4 = 64 • 53 = 5 x 5 x 5 = 125 • and so on and on and on….. www.assignmentpoint.com
2 x 2 = 4 2 2 www.assignmentpoint.com
3 x 3 = 9 3 3 www.assignmentpoint.com
4 x 4 = 16 4 4 www.assignmentpoint.com
5 x 5 = 25 5 5 www.assignmentpoint.com
2 The square root of 4 is www.assignmentpoint.com
3 The square root of 9 is www.assignmentpoint.com
4 The square root of 16 is www.assignmentpoint.com
5 The square root of 25 is www.assignmentpoint.com
Cubes 5 6 7 8 1 2 3 4 www.assignmentpoint.com
2 x 2 x 2 = 8 2 2 2 www.assignmentpoint.com
3 x 3 x 3 = 27 www.assignmentpoint.com
NTH ROOTS • a square (second) root is written as: • a cube (third) root is written as: • a fourth root is written as: • a fifth root is written as: www.assignmentpoint.com
SIMPLIFY 1. 2. 3. www.assignmentpoint.com
ANSWERS • 1. 7 • 2. -2 • 3. 3xy2 www.assignmentpoint.com
CUBES: Cathy is building a cubic storage room. She wants the volume of the space to be 1728 cubic feet. What should the dimensions of the cube be? www.assignmentpoint.com