Kinetics Arrhenius Calculator
Nuclear Decay Calculator
Linear Least Squares Regression
Newton's Method Equation Solver
Units Conversion Calculator
Related Information Links
Texas Instruments Calculators
Hewlett Packard Calculators
Problem 2 Solution
The key idea:
The order of operations may need to be emphasized again, especially the proper
use of parentheses to evaluate the denominator correctly.
Solution Steps for Problem 2:
- Recall the order of operations is Parentheses, Exponentiation, Multiplication or Division, Addition or Subtraction.
- One "tricky" part was covered in "Working with Numbers:"
-1^2 is evaluated as -1, since the exponentiation is done before the negation.
- Another step that you might miss is putting the denominator inside parentheses, since 3^2 is divided by the WHOLE denominator.
- Entering the following key strokes in a T1-82 style calculator produces the answer:
3 ^ 2 / ( 1 + ( 22 / 3 + 4 * ( - (1 ^ 2) ) ) ) ENTER
Try another problem like this one.