#3 is 1920 cubic inches
#4 i cant see the shape
Explanation:
the height is 1 inch so we can disregard that.
58 squared minus 38 squared is 1920 because if it was a square it would be side length 58 but we have to subtract 20 to find what is missing.
Answer:
1200 m
Step-by-step explanation:
We are given that
Area of pasture,A=180000 square meter
We have to find the least amount of fencing required to enclose such a pasture.
Let length of pasture,=x
Width of pasture,b=y
Area of pasture=
Fencing required=2x+y
Differentiate w.r.t x
m
It is always positive because length cannot be negative.
m
Again differentiate w.r.t x
Substitute x=300
The fence is minimum at x=300
Therefore, fencing required to enclose such a pasture
Answer:
Step-by-step explanation:
IIada, Distance = speed*time, so speed = distance/time right?
The plane went the same distance each direction.
s - w = 40/30 = 4/3
s + w = 40/20 = 2
Adding the two equations together...
s = 5/3
w = 1/3
So the speed of the wind in miles per hour is 1/3
Answer:
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Step-by-step explanation: