# Correct 625 points out of 625 question 2 correct 625

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Question Determine the union XY. Express the interval notation.1Correct6.25 points out of 6.25Question 2Correct6.25 points out of 6.25in X = {x } and Y = {x }Select one:a. { }b. [11, 14)c. (11, 14]d. (-∞, 11] (14,∞)The correct answer is: (-∞, 11] (14,∞)Evaluate the expression.(-11)Select one:a. -9b. -121c. 121d. -22The correct answer is: 1216/4/2018
2Page 2 of 15Graded Exam #1
Question 3Correct6.25 points out of 6.25If z> 0, then 5z+ Question Correct6.25 points out of 6.25notation.(-4, 4]4Solve the problem.If z> 0, then 5z+ =
z
0
1
z
zWrite the subset of real numbers in set-builder notation.(-4, 4]
Page 3 of 15Graded Exam #1
Question 5Incorrect0.00 points out of 6.25Simplify the expression. Write your answer with positive exponents only.Select one:a. b. c. d. The correct answer is: -2-1Page 4 of 15Graded Exam #16/4/2018
Question 6Incorrect0.00 points out of 6.250.00000063Question 7Correct6.25 points out of 6.25Write the number in scientific notation.0.00000063
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