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
(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.
THANK YOU!!3 AnswersChemistry1 decade ago
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