Monthly Archives: March 2009

Day 136 – March 31

Posted on March 31, 2009 by admin

Algebra: Chapter 11, Lesson 4, page 495. Multiplying Radical Expressions Remember that the `sqrt(ab) = sqrt(a)⋅sqrt(b)` and you can’t go wrong. Make sure that you simplify and identify perfect squares. Practice makes perfect. The steps can be stated as: Multiplying … Continue reading →

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Day 135 – March 30

Posted on March 30, 2009 by admin

Algebra: Chapter 11, Lesson 3, page 349. Simplifying Radical Expressions REMEMBER: `sqrt(x^2) = (x^2)^(1/2) = x^(2 * (1/2)) = x`. The `sqrt` is just a variable, expression or constant raised to the `1/2` power! It’s easy to simplify radicals. You … Continue reading →

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Day 134 – March 27

Posted on March 27, 2009 by admin

Algebra: Chapter 11, Lesson 1 and Lesson 2, page 482 and page 487. Real Numbers (Square Roots) and Radical Expressions Definition: the number `c` is a square root of `a` if `c^2=a`. In math symbols then, `c = sqrt(a^2)` Prinicipal … Continue reading →

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Day 133 – March 26

Posted on March 27, 2009 by admin

Algebra: Chapter 10 TEST! Make sure that you finish it at home, double check your answers!

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Day 132 – March 24

Posted on March 24, 2009 by admin

Chapter 10 Review Today, we worked in cooperative groups on version A and B of the test. The test is THURSDAY – make sure that your notes are up-to-date! The end of the chapter Assessment on page 479 is a … Continue reading →

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Day 131 – March 23

Posted on March 23, 2009 by admin

Chapter 10, Lesson 12, page 475. Reasoning Strategies You can use the following strategies on the reasoning strategy problems in Chapter 10-12. Draw a diagram Make an organized list Look for a pattern Try, test and revise Use logical reasoning … Continue reading →

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Days 129, 130 – March 19 and 20

Posted on March 20, 2009 by admin

Algebra: Chapter 10, Lesson 10, page 469. Complex Rational Expressions To simplify a complex rational expression, multiply the numerator and denominator by an expression equivalent to `1`. The expression selected should use the least common multiple of any denominator found … Continue reading →

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Days 127, 128 – March 17 and 18

Posted on March 17, 2009 by admin

Algebra: Chapter 10, Lesson 9, page 465. Dividing Polynomials To divide a polynomial by a monomial, divide each term by that monomial. For example: `(6x^2 + 3x – 2)/3` becomes `(6x^2)/3 + (3x)/3 -2/3` or simplifying terms, we have `2x^2 … Continue reading →

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Days 125, 126 – March 13 and 16

Posted on March 15, 2009 by admin

Algebra: Chapter 10, Lesson 8, page 460. Mixture Problems Whether they are acid mixes or coffee bean blends or mixed nuts, we treat these problems the same. `x` will stand for the amount of one of the mixes and the … Continue reading →

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Day 124 – March 12

Posted on March 12, 2009 by admin

Algebra: Chapter 10, Lesson 7, page 455. Using Rational Equations We are working on DRT problems and “WORK” `1/x` problems. These say, if it takes one person 2 hours to do a job and another person 3 hours, how long … Continue reading →

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