Calculus > SOPHIA Milestone > Algebra Unit 1 Milestone. Ashford University SOPHIA PATHWAY . (All)
Sophia – College Algebra Unit 1 Milestone 1 Consider the following expression: What is the value of this expression when x = -5? RATIONALE To find the value of this express... ion when x = -5, begin by substituting -5 for every instathe expression. Once all instances of x have been substituted with -5, we can evaluate the expression. Tbar acts as a group symbol, separating the expression in the numerator, |-5|, from the ethe denominator, . Evaluate each of them separately before dividing, starting with tvalue of -5. Recall that the absolute value of a number is its non-negative value. The absolute value5. Next, in the denominator, we can square -5. Remember that a negative number squared is always positive so -5 squared is 25. Finalthe fraction. The fraction can be simplified to . CONCEPT Operations as Grouping Symbols 2 Which of the following equations is correctly calculated? [Show More]
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