### Home > CALC > Chapter 12 > Lesson 12.1.3 > Problem 12-41

12-41.

**Multiple Choice:**The function*f*is continuous on the closed interval [3, 9] and has values given in the table below. Homework Help ✎**x**3

4

7

9

*f*(*x*)50

40

20

30

Using the subintervals [3, 4], [4, 7], and [7, 9], what is the trapezoidal approximation of

? 160

185

200

210

300

Be careful! The subintervals have different widths.