Using 4 equal-width intervals, show that the trapezoidal rule is the average of the upper and lower sum estimates for the integral from 0 to 2 of x squared, dx .

Split up the interval [0, 2] into 4 subintervals, so that

Each subinterval has width . The area of the trapezoid constructed on each subinterval is , i.e. the average of the values of at both endpoints of the subinterval times 1/2 over each subinterval .

So,

the answer is 14ft

step-by-step explanation:

1,150 give brainliest

step-by-step explanation

2r= 2300

r =1150