COURSE 3 LESSON 7 3 Exponents and Division

COURSE 3 LESSON 7 -3 Exponents and Division Simplify each expression. a. (– 5)0 = 1 b. y 0 Simplify. y 0 = 1 7 -3 Simplify.

Exponents and Division COURSE 3 LESSON 7 -3 Simplify each expression. a. 2– 3 b. (p)– 8 1 = 23 1 = 8 Write the expression using a positive exponent. Simplify. 7 -3 1 = p 8

COURSE 3 LESSON 7 -3 Exponents and Division Among the microscopic possible fossils found on Mars, the largest are less than approximately 2. 45 10– 5 cm in size. Write this number in standard form. 2. 45 10– 5 = 0. 00002. 45 A negative exponent indicates division. Move the decimal point 5 places to the left to make 2. 45 less than 1. The largest of the possible fossils found on Mars are less than approximately 0. 0000245 cm in size. 7 -3

COURSE 3 LESSON 7 -3 Exponents and Division Write 0. 0000807 in scientific notation. 0. 0000807 = 0. 00008. 07 Move the decimal point 5 places to the right to get a factor greater than 1 but less than 10. = 8. 07 10– 5 Since you moved the decimal 5 places, use – 5 as the exponent of 10. 7 -3

COURSE 3 LESSON 7 -3 Exponents and Division 97 1. Write 94 using a single exponent. 93 Simplify each expression. 2. 60 1 3. 4– 2 1 16 4. The diameter of a cell is 9 10– 5 in. Write this number in standard form. 0. 00009 in. 5. Write 0. 00084 in scientific notation. 8. 4 10– 4 7 -3