Question 17 O Mark this question 4 15 Estimate the value of dx by using n = 4 subintervals of equal width using Simpson's rule. 2 x- + 1 Round the final result to five decimal places. O =4.92163 O =2.67716 O =3.28109 O =2.71407Question 20 0 Mark this question Find the average value of x) = 1 + over the interval [4.25]. O 99 393 O T 13'] O W 33