Part III
Answer all questions in this part. Each correct answer will receive 3 credits. Clearly indicate
the necessary steps, including appropriate formula substitutions, diagrams, graphs, charts, etc.
For all questions in this part, a correct numerical answer with no work shown will receive only
1 credit. [9]
34 Sarah measures her rectangular bedroom window for a new shade. Her measurements are
36 inches by 42 inches. The actual measurements of the window are 36.5 inches and 42.5 inches.
Using the measurements that Sarah took, determine the number of square inches in the area of
the window.
Determine the number of square inches in the actual area of the window.
Determine the relative error in calculating the area. Express your answer as a decimal to the
nearest thousandth.
[15]
[OVER]
Integrated Algebra – Jan. ’09