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    Suppose a quadratic equation has the form y = ax^2 + bx + c. Which condition verifies the equation does NOT intersect the x-axis?

    A. b^2 - 4ac = 0

    B. b = a + c

    C. b^2 - 4ac > 0

    D. b^2 - 4ac < 0

    I forgot how to do this, please help and explain how you got your answer. Thank you in advance! :]

    2 AnswersMathematics1 decade ago
  • Which oxide is more acidic: SiO2 or CO2?


    Thank You very much!!

    1 AnswerChemistry1 decade ago
  • True of False - PLEASE HELP?

    (a) Electromagnetic radiation is incapable of passing through water.

    (b) The glow from a fireplace, the energy within a microwave oven, and a foghorn blast are all forms of electromagnetic radiation.

    Is this true or false, and if it is false can you please correct it.


    3 AnswersChemistry1 decade ago
  • Need Help Singing?

    I noticed that sometimes when I sing, my voice kinda gets scratchy. Like I'll be singing a high note then all of a sudden my voice will just mess up and then it might go back. I need help in singing overall. [ Ms.Chick I hope you answer my question i see that you are very helpful with music. Do you live in TX by any chance?? ]

    5 AnswersSinging1 decade ago