The table below gives values of f(x, y), the number of milligrams of mosquito larvae per square meter in a swamp.. x=0x=2x=4. y=0136. y=3259. y=64814. if x and y are in meters and r is the rectangle 0≤x≤4, 0≤y≤6, estimate ∫rf(x, y)da.. ∫rf(x, y)da≈ . (include units in your answer.) . hint: evaluate the riemann sums using the lower left corners and upper right corners. then take the average of the two riemann sums..

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: