Old Farmer MacDonald wants to build a pen to keep his chickens in. He has 36 meters of fence and plans to make a rectangular pen
. Complete the chart to help Old MacDonald decide how to make his chicken pen so that he has the maximum area.
1 answer:
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We have been given two vectors and
, we are to find out the scalar and vector projection of
onto
we have and
The scalar projection ofonto
means the magnitude of the resolved component of
the direction of
and is given by
The scalar projection of onto
The Vector projection of onto
means the resolved component of
in the direction of
and is given by
The vector projection of onto
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Answer:
21 feet
Step-by-step explanation:
Given :
Height of the tripod above the ground = 5 ft
Elevation = 8°
Distance of the tree from the tripod = 120 ft
Therefore from the figure, we can find the height of the tress as:
∴ BC ≈ 16
Therefore, CE = BC+BE
= 16 + 5
= 21
Therefore the height of the tree is 21 feet.
