exam
Maths Puzzle
Numerical Ability
what is the domain and range of this equation: x=-1
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exam Other Question
If Earthquake 1 measures 6.2 on the Richter scale, and Earthquake 2 measures 8.2 on the Richter scale, how many times bigger was Earthquake 2 than Earthquake 1? (Rephrased: By what factor was Earthquake 2 bigger than Earthquake 1?)
Simplify. (Multiply)
( -5 {{{ (sqrt x + sqrt y) }}} )({{{ sqrt (x-4) sqrt (y)}}} )