'Standardized test practice' presentation slideshows

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Entry Task 02/08/2011

Entry Task 02/08/2011. Solve the equations: 1.) 2.) 3.). Objective. Solve absolute value equations. Copy the following into your math journal, keep copying it over again till I say stop. -If c is negative then there are no solutions, since an absolute value cannot be negative. Vocabulary.

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STP 1

Standardized Test Practice.

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EXAMPLE 1

2(3.14)( 11 ). ANSWER. The circumference is about 69.08 meters. EXAMPLE 1. Using Radius to Find Circumference. Find the circumference of a circle with a radius of 11 meters. SOLUTION. C = 2? r. Circumference formula. Substitute 3.14 for ? and 11 for r. = 69.08. Multiply.

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EXAMPLE 2

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EXAMPLE 2

STEP 1. Find the least common denominator of the fractions. The LCM of 16 , 4 , and 8 is 16 , so the LCD is 16. STEP 2. Use the least common denominator to write equivalent fractions. EXAMPLE 2. Standardized Test Practice. SOLUTION. =. =. =. =. 7. 4. =. =. 16. 7. 70. 71.

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EXAMPLE 1

Evaluate the six trigonometric functions of the angle ?. From the Pythagorean theorem, the length of the. hypotenuse is. ?. 169. 13. ?. 5 2 + 12 2. =. =. opp. hyp. 13. 12. sin ?. csc ?. =. =. =. =. 12. hyp. opp. 13. EXAMPLE 1. Evaluate trigonometric functions. SOLUTION.

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EXAMPLE 1

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EXAMPLE 1

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Solve an equation by combining like terms

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EXAMPLE 3

Photo Stickers. You are making your own photo stickers. Your photo is 4 inches by 4 inches. The image on the stickers is 1.1 inches by 1.1 inches. What is the scale factor of the reduction?. EXAMPLE 3. Find a scale factor.

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EXAMPLE 1

?. ?. In the diagram, ABC ? DEF . Find the indicated ratio. a. Ratio (red to blue) of the perimeters. b. Ratio (red to blue) of the areas. EXAMPLE 1. Find ratios of similar polygons. a. By Theorem 6.1 on page 374, the ratio of the perimeters is 2:3. b.

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EXAMPLE 1

?. ?. In the diagram, ABC ? DEF . Find the indicated ratio. a. Ratio (red to blue) of the perimeters. b. Ratio (red to blue) of the areas. EXAMPLE 1. Find ratios of similar polygons. a. By Theorem 6.1 on page 374, the ratio of the perimeters is 2:3. b.

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Standardized Test Practice

EXAMPLE 1. Standardized Test Practice. Write and solve a two-step equation to find the number of flamingos. Write a verbal model. Let n be the number of additional flamingos. EXAMPLE 1. Standardized Test Practice. SOLUTION. 790. 395 n. =. 395. 395. EXAMPLE 1.

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Standardized Test Practice

3. Raise each side to the power. 2. EXAMPLE 3. Standardized Test Practice. SOLUTION. 4 x 2/3 = 36. Write original equation. x 2/3 = 9. Divide each side by 4. ( x 2/3 ) 3/2 = 9 3/2. x = 27. Simplify. ANSWER. The correct answer is D. 4/3. ( x + 2) 3/4. = 8 4/3.

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EXAMPLE 1

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EXAMPLE 2

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EXAMPLE 5

Standardized Test Practice. EXAMPLE 5. SOLUTION. The lateral surface area of a cylinder is equal to the area of its curved surface. This surface becomes a rectangle in the net of the cylinder, with length equal to the circumference of the base. ANSWER.

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EXAMPLE 2

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