Which quantity is greater: 2x-4 x^2+7
A 500 mL solution of 1 M NaOH is added to 500 mL of 5 M NaOH. What is the molarity of the final solution?
A projectile has an initial velocity of 21 m/s at 30 degrees above horizontal. How far from its starting point will the projectile be when it returns to its initial elevation?