This part demonstrates WeBWorK problems where you enter letters or words. We start with a True/False question. Enter a T or an F in each answer space below to indicate whether the corresponding statement is true or false. 1. $-9 \leq -9$ 2. $\sqrt {8-3} \geq \sqrt 8 - \sqrt 3$ 3. $\sqrt {10+3} \geq \sqrt 10 + \sqrt 3$ 4. $2 \lt -8$ 5. $\pi \geq \frac{22}{7}$ Notice that if one of your answers is wrong then, in this problem, WeBWorK will tell you which parts are wrong and which parts are right. This is the behavior for most problems, but for true/false or multiple choice questions WeBWorK will usually only tell you whether or not all the answers are correct. It won’t tell you which ones are wrong. The idea is to encourage you to think rather than to just try guessing. Typically all of the answers must be correct before you get credit for a problem like this. Now we have a question where the answer involves a word. When a word is a possible answer, we will usually emphasize your options by using italics. Where would this happen? Well, we might have a situation where we have division by zero. Of course, we all know that this is undefined. We might also try to take the square root (or even root) of a negative number. This is also undefined if we expect to get a real number as an answer. Evaluate the following expressions. Exact real number answers are required for each problem. When one of them does not evaluate to a real number, type undefined in its answer box. Also, if you try to enter the calculation into WeBWorK for an undefined process, WeBWorK will NOT give you credit. Pay attention to how placing parentheses, shifting the location of a negative sign, or changing an operation can change the result of the calculations.