Exam 1: Algebraic Concepts

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Perform the indicated operations and simplify. ​ Perform the indicated operations and simplify. ​

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Perform the indicated operations and simplify. ​ Perform the indicated operations and simplify. ​   ​

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If $P is invested for n years at rate i (as a decimal), compounded annually, the future value that accrues is given by If $P is invested for n years at rate i (as a decimal), compounded annually, the future value that accrues is given by   , and the interest earned is   . Find I for the given P, n, and i. Round your answer to two decimal places. ​ $2,400 for 9 years at 8% ​ , and the interest earned is If $P is invested for n years at rate i (as a decimal), compounded annually, the future value that accrues is given by   , and the interest earned is   . Find I for the given P, n, and i. Round your answer to two decimal places. ​ $2,400 for 9 years at 8% ​ . Find I for the given P, n, and i. Round your answer to two decimal places. ​ $2,400 for 9 years at 8% ​

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Evaluate the following expression if it represents a real number. ​ Evaluate the following expression if it represents a real number. ​   ​

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Simplify the complex fraction. ​ Simplify the complex fraction. ​   ​

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Factor the expression completely. Factor the expression completely.   ​

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Suppose it has been determined that the sales at Ewing Gallery decline after the end of an advertising campaign, with daily sales given by Suppose it has been determined that the sales at Ewing Gallery decline after the end of an advertising campaign, with daily sales given by   , where S is in dollars and x is the number of days after the campaign ends. What are the daily sales 8 days after the end of the campaign? ​ , where S is in dollars and x is the number of days after the campaign ends. What are the daily sales 8 days after the end of the campaign? ​

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Factor the expression as a product of binomials. ​ Factor the expression as a product of binomials. ​   ​

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In calculus, it is frequently important to write an expression in the form In calculus, it is frequently important to write an expression in the form   , where c is a constant and n is a rational number. Write the expression in this form. ​   ​ , where c is a constant and n is a rational number. Write the expression in this form. ​ In calculus, it is frequently important to write an expression in the form   , where c is a constant and n is a rational number. Write the expression in this form. ​   ​

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If an investment has a goal (future value) of $S after n years, invested at interest rate i (as a decimal), compounded annually, then the present value P that must be invested is given by If an investment has a goal (future value) of $S after n years, invested at interest rate i (as a decimal), compounded annually, then the present value P that must be invested is given by   . Find P for the given S, n, and i. Round your answer to two decimal places. ​ $18,000 after 10 years at 11.25% ​ . Find P for the given S, n, and i. Round your answer to two decimal places. ​ $18,000 after 10 years at 11.25% ​

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Simplify by combining like terms. ​ Simplify by combining like terms. ​   ​

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Perform the indicated operations and simplify. ​ Perform the indicated operations and simplify. ​   ​

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Replace the radical with a fractional exponent. Do not simplify. ​ Replace the radical with a fractional exponent. Do not simplify. ​   ​

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Use the properties of exponents to simplify the expression so that only positive exponents remain. ​ Use the properties of exponents to simplify the expression so that only positive exponents remain. ​   ​

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Factor the expression as a product of binomials. ​ Factor the expression as a product of binomials. ​   ​

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Is Is   , if   and   ? ​ , if Is   , if   and   ? ​ and Is   , if   and   ? ​ ? ​

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Express the following expression as a single fraction with no common factors in the numerator and denominator. ​ Express the following expression as a single fraction with no common factors in the numerator and denominator. ​   ​

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If If   and   , is A a subset of B? ​ and If   and   , is A a subset of B? ​ , is A a subset of B? ​

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Perform the indicated operations and simplify. ​ Perform the indicated operations and simplify. ​   ​

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Evaluate the algebraic expression at the indicated values of the variables. ​ Evaluate the algebraic expression at the indicated values of the variables. ​   at   and   ​ at Evaluate the algebraic expression at the indicated values of the variables. ​   at   and   ​ and Evaluate the algebraic expression at the indicated values of the variables. ​   at   and   ​

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