Let x be the height of the box and y be the length of one side of the base then:-
V = xy^2 = 108
x = 108/y^2
Surface area = y^2 + 4xy
S = y^2 + 4y* 108/y^2
S = y^2 + 432/y
Finding the derivative:-
dS/dy = 2y - 432/y^2 = 0
2y^3 = 432
y^3 = 216
y = 6
Check if this gives a minimum value:-
second derivative = 2 + 864/y^3 which is positive so minimum.
V = xy^2 = 108
36y = 108
y = 3
Answer :- dimensions of the box is 3*6*6 metres
Answer:
Option A and Option E
Step-by-step explanation:
Option A.
x + 3 = 5
(x + 3) - 3 = 5 - 3
x = 2
Option B.
x + 2 = 8
(x + 2) - 2 = 8 - 2
x = 6
Option C.
x + 1 = 1
(x + 1) - 1 = 1 - 1
x = 0
Option D.
x - 2 = 4
(x - 2) + 2 = 4 - 2
x = 2
Option E.
x - 7 = -5
(x - 7) + 7 = -5 + 7
x = 2
Therefore, Option (A) and Option (E) are the correct options.
Answer:
22 times
Step-by-step explanation:
Since there are four colors that cycle in each pattern stage (blue green yellow orange) and there are 88 beads, there would be 22 repetitions of the pattern since 88/4 = 22.
