Precalculus Chapter 1 Quiz Part I
Identify the choice that best completes the statement or answers the question.
____ 1. Perform the indicated operation.
____ 2. Perform the indicated operation.
____ 3. Express the interval in terms of inequalities.
____ 4. State the property of real numbers being used.
a.Commutative property for multiplication.
b.Commutative property for addition.
c.Associative property for multiplication.
e.Associative property for addition.
____ 5. Use properties of real numbers to write the expression 5( 8x ) without parentheses.
a.40 + 5x
d.8x + 5
____ 6. Perform the indicated operations.
____ 7. Select the correct statement.
____ 8. Simplify the expression. Assume the letters denote any real numbers.
____ 9. Simplify the expression.
Assume that b is a positive number.
____ 10. Simplify the expression.
Eliminate any negative exponents. Assume that all variables are positive numbers.
____ 11. Write the number 0.06447 in scientific notation.
____ 12. Use scientific notation, the Laws of Exponents, and a calculator to perform the operation.
____ 13. Use scientific notation, the Laws of Exponents, and a calculator to perform the indicated operations. State your answer correct to the number of significant digits indicated by the given data.
____ 14. State whether the polynomial is a monomial, binomial, or trinomial, then list its terms and state its degree.
____ 15. Perform the indicated operations and simplify.
____ 16. Perform the indicated operations and simplify.
____ 17. Perform the indicated operations and simplify.
____ 18. Factor out the common factor.
____ 19. Factor the expression completely. Begin by factoring out the lowest power of each common factor.
____ 20. Find the domain of the expression.
____ 21. An expression is given. Evaluate it at the given value.
____ 22. Simplify the expression.
____ 23. Rationalize the denominator.
____ 24. A large pond is stocked with fish. The fish population P is modeled by the formula , where t is the number of days since the fish were first introduced into the pond. How many days will it take for the fish population to reach 416?
____ 25. Solve the equation.
____ 26. Find all real solutions of the equation.
a.x = 3, x = 5
b.x = 0, x = 5
c.none of these
d.x = 0, x = –33
e.x = 6, x = 10
____ 27. Simplify the expression.
____ 28. Solve the equation.
–4w + 32 = –8w
____ 29. Find all real solutions of the equation.
a. none of these
____ 30. Find all real solutions of the equation.