8.1 Review Worksheet, Part 1 (continued)
Simplify. Assume that all expressions are defined.
x 2 5 9 3 1 3 2 − − − + x x x
x 3 2 4 5 1 x 2 − −
x
40.
41.
42.
x
x 1 3
+
x x x 2
+ + −
x
+
6
43. A solution is heated from 0ºC to 100ºC. Between 0ºC and 50ºC, the rate of temperature increase is l.5ºC/min. Between 50ºC and 100ºC, the rate of temperature increase is 0.4ºC/min. What is the average rate of temperature increase during the entire heating process? Round to the nearest tenth.
200
Made with FlippingBook - Share PDF online