0 Replies Latest reply on Oct 25, 2019 7:41 PM by Sohye Kim

    ASVAB for dummies question

    Sohye Kim

      As I was studying ASVAB for dummies, I have 2 questions.

       

      On the page 89-92 of 2019/2020 ASVAB for dummies, there are some math.

      291AD8D5-B5DF-47D7-8ACB-7897863D63EA.jpeg

      this is the question

      837E5EC5-A8D5-4A62-AF4F-3628D1C21430.jpeg

      and this is the answer sheet.

       

      on number 7, there is a question x⁴ - 16=0.

      so that leads me  x⁴ = 16 therefore the x = 2.

      but I can't understand why the answer started as x²-16=0 which leads the answer to x=4.

      please help me understand.

       

      and one more question on question number 19.

      8A01CC5E-BCCE-4663-8996-D0DE8319CF86.jpeg

      this is the question

      D6B6EF88-F673-487D-9DE7-1EC3A8DCD943.jpeg

      and this is the answer.

       

      as the answer said median is the middle number in a series when the numbers are in order.

      So we have 5 numbers 73 /81 /90 /92 /97 in order. in this case the median number has to be 90 isnt it?

      Also there is no correct choice of answer on the question and the answer said A which is 81 and I don't agree with it.

      please help me understand this one if im wrong.

       

      thank you.