Concave up is U-shaped.
There will be a inflection/critical point f'(x) =0 then a negative slope f'(x) = neg then another inflection/critical point f'(x) =0 at the bottom of the U-shape then a positive slope to last inflection/critical point. The interval for the Concave Up shape is the first and last inflection points.
2/5 | 52% | 0.57 is the answer
(i) There is glucose outside the Visking tubing. Glucose is small enough to pass through it.
(iii) Normal urine color ranges from pale yellow to deep amber — the result of a pigment called urochrome and how diluted or concentrated the urine is. Pigments and other compounds in certain foods and medications can change your urine color. Beets, berries and fava beans are among the foods most likely to affect the color.
LINK: https://www.mayoclinic.org/diseases-conditions/urine-color/symptoms-causes/syc-20367333
I HOPE THIS HELPS. IF IT DOES, PLEASE MARK BE AS BRAINLIEST. EVERYTHING ELSE IS CORRECT EXEPT (i)
The answer is 270 , I multiplied 15 by 18 and got 270
