Approximate the double integral of f (x comma y )equals x plus y over the region r bounded above by the semicircle y equals startroot 16 minus x squared endroot and below by the x-axis, using the partitions x equals negative 4 comma negative 2 comma 0 comma 1 comma 2 comma 4 and y equals 0 comma 2 comma 4 with (x subscript k baseline comma y subscript k baseline )the lower left corner in the kth subrectangle (provided the subrectangle lies within r).

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

europa2433

europa2433

step-by-step explanation:

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°