Question 15 correct 625 points out of 625 flag

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Question 15Correct6.25 points out of 6.25
Flag questionQuestion textSolve the equation.- = -1Select one:
Question 16Incorrect0.00 points out of 6.25Flag questionQuestion textSolve the equation.x2(x2+ 31) = 180
a.{±5,± 6i}b.{±,± 6i}c.{±5i,± 6}d.{±5,± 6}FeedbackThe correct answer is:{±,± 6i}Question 17Correct6.25 points out of 6.25Flag questionQuestion textMake an appropriate substitution and solve the equation.(3x+ 7)2+ 2(3x+ 7) - 15 = 0Select one:
Question 18
Correct6.25 points out of 6.25Flag questionQuestion textDetermine the set of values ofxfor which the radical expression would produce areal number.Select one:a.{x|x≤ 15}b.{x|x≥ 15}c.{x|x> 15}d.{ }FeedbackThe correct answer is:{x|x≤ 15}
Question 19Correct6.25 points out of 6.25Flag questionQuestion textWrite an absolute value inequality equivalent to the expression."All real numbers whose distance from 0 is more than 82."
Select one:
Question 20Incorrect0.00 points out of 6.25Flag questionQuestion textSolve the absolute value inequality. Write the solution in interval notation.|2b- 23| >-15Select one:

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