True or False? log2 5 = log16 625

A teacher offers ten possible assignments for extra credit in a course but requires students to choose them, without looking, from a hat. Six assignments involve library research and four are computer programming exercises. Suppose that a student chooses two assignments, one after the other, at random without replacement. What is the probability that at least one of the assignments is a computer programming exercise?

How do acids and bases react to a hydrogen ion in solution? 

Let X= {a, b, c} and Y= {u, v}. Which of the following arrow diagrams define functions from X to Y ?

_____ currents are the slow, deep currents that affect the vast bulk of seawater beneath the pycnocline. 

What weather event caused much of the major damage to the Gulf Coast during Hurricane Katrina?

What is the term used to describe the total quantity (or concentration) of dissolved inorganic solids in water? 

The greatest amount of heat transfer through ocean currents occurs at _____. 

Surface currents that result from a balance between a pressure gradient and Coriolis effect are known as _____ currents. 

Because density is largely a function of temperature and salinity, the movement of water due to differences in density is called _____.