Answer:
because the smaller potato cube has a smaller volume to area ratio that means smaller absorption time.
Step-by-step explanation:
there are 2 things to consider:
1°) if the iodine enters at constant rate to the cube, the time required to completely absorb all the iodine is proportional to the mass of the potato cube ( more mass that is required to absorb, means more iodine should enter the cube at same rate and therefore more time) . also, the mass of the potato is proportional to the volume of it (assuming constant density)
2°) if we consider 2 potatoes with same mass, the time required is inversely proportional to the area of contact with the solution of iodine ( more area means more iodine is able to enter per mm2 of potato's surface with the same mass and consequently less time)
therefore, the time is proportional to the ratio of volume and area of the cube. Since the smaller cube has a smaller ratio, takes less time to be completely purple
Attached can be found more details
Answer:
39 units²
Step-by-step explanation:
A line segment from R to V will divide the figure into a 5 by 6 rectangle and a triangle with base 6 and height 3. Appropriate area formulas will help you find the areas of these parts. The total area is the area of the parts.
rectangle area = L·W = 5·6 = 30 . . . units²
triangle area = 1/2·b·h = 1/2·6·3 = 9 . . . units²
Then the polygon area is ...
polygon area = rectangle area + triangle area = (30 +9) units² = 39 units²
I don’t understand this question can u please clarify it
Step-by-step explanation:
<u>Step 1: List out all of the formulas for the trigonometric functions
</u>
<em>sin(x)</em> = opposite/hypotenuse
<em>cos(x)</em> = adjacent/hypotenuse
<em>tan(x)</em> = opposite/adjacent
<u>Step 2: Find the values for the given numbers
</u>
sin(J) = opposite/hypotenuse = <em>24/25
</em>
tan(J) = opposite/adjacent =<em> 24/7
</em>
sin(K) = opposite/hypotenuse = <em>7/25
</em>
tan(K) = opposite/adjacent = <em>7/24
</em>
<u>Step 3: Check if the answers match
</u>
24/25 = 24/25 So it is TRUE
24/7 != 7/25 So it is FALSE
7/25 != 24/25 So it is FALSE
7/24 = 7/24 So it is TRUE
Answer: TRUE, FALSE, FALSE, TRUE