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Notes Day 2 Book sections 7.2 and 7.3. Practice Radical Operations 1. 2. 3.

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Presentation on theme: "Notes Day 2 Book sections 7.2 and 7.3. Practice Radical Operations 1. 2. 3."— Presentation transcript:

1 Notes Day 2 Book sections 7.2 and 7.3

2 Practice Radical Operations 1. 2. 3.

3 Practice Radical Operations 4. 5..

4 Simplify and rationalize all denominators Assume all variables are positive 6. 7.

5 More rationalizing the denominator 8. 9. 10. Hint: Multiply by a form of one which will eliminate the radical in the denominator!

6 11. Find the radius of a cone that has a volume of 11 cubic inches and a height equal to its radius.

7 12. An object moves at a speed of feet/sec. How long will it take for the object to travel 15 feet? Now multiply by conjugate form of 1 to rationalize the denominator

8 13. Jim has 1 piece of wood that is 1” x ½” x 240”. He plans to cut the 240” into three pieces in the ratio of 3:4:5 to make a right triangle. How long is the hypotenuse? 3x 4x 5x Now sub 20 in for each x Dimensions are 60, 80 and 100 but… The hypotenuse is 100”

9 14. A rectangular prism has dimensions 5 x 12 x 10. What is the length of the segment that connects the front left bottom corner to the back upper? 5 10 12

10

11 1. Simplify2.Find x3.If 12 is opposite the 60° angle of a 30-60-90 triangle, find the other sides 4. Rationalize the denom. 5.Simplify. 6.Simplify.7. Find the diagonal of a cube with a side length 2 8.Simplify9. Rationalize the denom. 10. Rationalize the denom Extra Practice on HW 7.2: Work this out in your math notebook. Assume all variables are positive.

12 1. Simplify2.Find x3.If 12 is opposite the 60° angle of a 30-60-90 triangle, find the other sides 4. Rationalize the denom. 5.Simplify. Extra Practice on HW 7.2: Work this out in your math notebook. Assume all variables are positive.

13 6.Simplify.7. Find the diagonal of a cube with a side length 2 8.Simplify9. Rationalize the denom. 10. Rationalize the denom Extra Practice on HW 7.2: Work this out in your math notebook. Assume all variables are positive.

14 6.Simplify.7. Find the diagonal of a cube with a side length 2 8.Simplify9. Rationalize the denom. 10. Rationalize the denom Extra Practice on HW 7.2: Work this out in your math notebook. Assume all variables are positive.

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