Answer:
I think option c is the answer
Answer:
Step-by-step explanation:
Represent the volume of the box with V and the dimensions with l, b and h.
The volume (V) is:
Make h the subject of the formula
The surface area (S) of the aquarium is:
Where lb represents the area of the base (i.e. slate):
The cost (C) of the surface area is:
Substitute for h in the above equation
Differentiate with respect to l and with respect to b
To solve for b and l, we equate both equations and set l to b (to minimize the cost)
By comparison:
becomes
Cross Multiply
Solve for l
Recall that:
Also recall that:
Apply law of indices
The dimension that minimizes the cost of material of the aquarium is:
Herbal Essences Totally Twisted Curl Boosting Hair... ...
Tresemmé Flawless Curls Extra Hold Mousse. ...
BioSilk Silk Therapy Glazing Gel. ...
John Frieda Frizz Ease Dream Curls Daily Styling Spray.
Vernon Francois Curl Moisture Spray.
Garnier Fructis Style Curl Sculpting Cream-Gel. ...
OGX Quenching Coconut Curls Shampoo.
here are some ideas
Jus plug 'em in & use PEMDAS
-7 - 8*7 => -7 - 56 => -7 + -56= -63
I believe -63 would be the final answer