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4-1 Lesson Quiz Write in exponential form. 1. nnnn 2. (-8)(-8)(-8)h 4. 2 3 Simplify. 3. (-4)4 5. Evaluate xz – yx for x = 5, y = 3, and z = 6. 6. A population of bacteria doubles in size every minute. The number of bacteria after 5 minutes is 15 • 25. How many bacteria are there after 5 minutes? 2 4-2 Lesson Quiz Simplify the powers of 10. 1. 10-3 2. 10-7 Simplify. 4 · 2-3 + 10-1 3. (-6)-2 5. Evaluate (4w)-2 + w-1 for w = 4. 4. 5. 80 – (11 – 24)-2 4-3 Lesson Quiz Simplify each expression. Write your answer in exponential form. 1. n3 x n 7 2. 8 • 88 3. 109 105 5. 32 • 3 3 • 35 7. (9-8)9 4. t9 t7 6. (m2)19 8. (104)0 4-4 Lesson Quiz Multiply 1. (3g2h3)(-6g7h2) 2. (12m3)(3mp3) Divide. Assume that no denominator equals zero. 3. 6a 6b 4 3a 2b 4. 9 x3 y 6x2 y 5. 20 p5q 4 p 2q 7. (3c2d3)4 8. (3m2n)5 Simplify. 6. (-5y7)3 4-5 Lesson Quiz Write the number in standard form. 1. 1.72 x 104 2. 6.9 x 10-3 4. 57,000,000 Write each number in scientific notation. 3. 0.0053 5. Order the numbers from least to greatest. 6. A human body contains about 5.6 x 106 microliters of blood. Write this number in standard form. 2 x 10-4 9 x 10-5 7 x 10-5 4-6 Lesson Quiz Find the two square roots of each number. 1. 144 2. 2500 4. z8 Simplify each expression. 3. 5. 49 p 6 Ms. Estefan wants to put a fence around 3 sides of a square garden that has an area of 225 ft2. How much fencing does she need? 4-8 Lesson Quiz. Write all classifications that apply to each number. 1. 2 2. - 16 2 State if each number is rational, irrational, or not a real number. 3. 5. 4. 25 0 Find a real number between 2 3 3 and 2 . 4 8 4 9