CHAPTER 11 PRACTICE TEST

As a study aid, we have included complete solutions for each Practice Test problem at the end of this book.

In Problems 1–14, simplify the given expressions. For those with exponents, express each result with only positive exponents. For the radicals, rationalize the denominator where applicable.

  1.  − 5y0

  2. (3πx − 4) − 2

  3. 1003/28 − 2/3

  4. (as − 1/3t3/4)12

  5. 220 − 125

  6. (2x − 1 + y − 2) − 1

  7. (2x − 3y)2

  8. 443

  9. 3 − 222x

  10. 27a4b3

  11. 22(310 − 6)

  12. (2x + 3)1/2 + (x + 1)(2x + 3) − 1/2

  13. (4a − 1/2b3/4b − 2)(b − 12a)

  14. 215 + 315 − 23

  15. Express 3 − 1/22 in simplest radical form with a rationalized denominator.

  16. In the study of fluid flow in pipes, the expression 0.220N − 1/6 is found. Evaluate this expression for N = 64 × 106 . 

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