An open-topped glass aquarium with a square base is designed to hold 4 cubic feet of water. What is the minimum exterior surface area of the aquarium?

Check the first picture below.

we know it's open at the top, thus we'll exclude the base atop from the surface area, we also know its volume is to be 4 cm³,  and that its base is a square, so we can say that

now if we do a first derivative test on that critical point of 2, hmmm the way I usually do it is, using a calculator, subtract a tiny bit from it, give it to a variable, to check the region on the left, and then add a tiny bit to it, give it to a variable, to check the region to its right.

so if we do that, say hmmmm 2 - 0.0000001 to some variable and then 2 + 0.0000001 to some other variable, plug those variables in the first derivative, then we'll see that, the region of the left of it is negative, and to its right is positive, check the 2nd picture below,  meaning is a minimum at the critical point of 2, and its area will be

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

mariah is studying the life cycle of the monarch butterfly. she must choose one stage in the cycle to present in science class: egg, caterpillar, chrysalis, or adult. she plans to make her choice randomly using a custom spinner divided into four sections. first, however, she spins the spinner 50 times to see the frequencies it generates.

stage times landed on

egg 10

caterpillar 12

chrysalis 15

adult 13

step-by-step explanation: