Answer: The ice sheet's thickness decrease every 6 weeks= 1.5 meters
Step-by-step explanation:
GIven: At the beginning of spring, the ice starts to melt. The variable sss models the ice sheet's thickness (in meters) t weeks after the beginning of spring. 
At t=0, 
So, Thickness of ice sheet at the beginning = 4 meters
Now at t= 6, we get

Thickness of ice sheet after 6 weeks = 2.5 meters
Decrease in thickness = 4 meters - 2.5 meters = 1.5 meters
Hence, the ice sheet's thickness decrease every 6 weeks= 1.5 meters
Answer:
A = 11 i believe
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
Answer:
Width is 3 ft
length is 6 ft
Step-by-step explanation:
Let x = the width
Let 2x = the length
Let h = the height
We know that volume is given v = l×b×h
so we have v = volume 


surface area include 2 ends + 1 bottom and 2 sides excluding top


we have calculate


By graphing above equation we can calculate the value of x
Minimum S.A when x is 3 is the width so
2(3) = 6 is the length

Hi Clear13 the answer is x=4 .I've included a picture to explain why