1. Tolerance

By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions.

If the correct answer is7.55009, which of the following entries would be counted as correct? That is, which entries are within WebAssign's default tolerance? (Select all that apply.)

7.55

7.71

7.6180

7.4

7.482

7.3915

2. Which of the entries below will be interpreted as numbers?

5,000

-4.99

40O0

1.56e-9

1.9435

3.25E4

1.56 e-9

1.23 inches

$2.59

3. Here are some simple equation problems. You should be able to remember the formulae or look them up in your text, on the web or at the library. Note that at the bottom of the question is a button called "symbolic formatting help". Click this button to learn the syntax for entering equations.Do not insert equal signs. For example, type "2y", not "x=2y".

(a) If the radius of a circle isr, what is its area? (Hint: Use pi for.)

(b) If a square has sides given by the variables. What is the area of the square?

(c) Writextimes 6 subtracted fromyall divided by 12 in equation form. (Hint: You will need parentheses for this one.)