- Use the discriminant to determine the number and type of solutions of the equations S^2 - 6s - 7=0?

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Naphthalene sublimation rate=3*10^-5/min. Volume of room=60m^3. How would I calculate the naphthalene concentration in the air of the room? What is the purpose of blanching foods? Find integers x and y such that 57x+79y=17, and 400 A 25.0mL solution containing .60M HCl was titrated with 0.50M NaOH. Calculate the pH before the titration and at equivalence point? How much butter is equal to 2 tablespoons of oil?