5) Tim and Miguel went to a fortune-teller at the state fair who tipped them off that their next calculus exam would have a problem involving ladders sliding down a wall. Cindy suggests they should replicate this in real life to gain an advantage on the rest of the class, so they all decide to bring a long ladder into their dorm. Tim further adds that they should use as long of a ladder as possible for an optimal experience. Cindy points out the problem that they must maneuver the ladder through a right-angle turn where the hallway constricts from 8 feet down to 5 feet wide. What is the longest ladder the trio can carry horizontally around the corner?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.8: Linear Programming
Problem 40E
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Question

Can you show me Number 5 with all steps? The question is in the first photo. Thank you!

Page <
1
>
of 2
+
ZOOM
The stories you are about to read about your classmates are true; only the names have
been changed to protect the innocent. For each of the stories encountered below you will
need to:
a) Draw a diagram with all relevant constants and variables labelled.
b) Write a function expressing the quantity to be minimized/maximized
function of one
as
a
other variable. Show all the work required to
derive this
formula.
c) State the domain of the function covering all possible configurations
your problem.
for
d) Compute the derivative and determine all critical points of the
function.
e) Analyze all
minimum/maximum.
critical
points
and
endpoints
to
determine
the
1) To relieve stress from doing homework problems, Julie has taken up gardening. She
has designed her garden plot in the shape of a circular sector with radius R and angle 0.
Based on the amount of vegetables she wants to grow, Julie has determined the garden
should have an area of 30 square feet. She needs to build an electric fence around the
perimeter to keep Joe out of the tomatoes. Find the dimensions R and 0 which will
minimize the length of fence Julie will need to build.
2) Elizabeth is fed up with AJ's jokes and decides to make him wear a dunce cap in
calculus class. She starts out with a paper circle of radius 12 inches and Luke suggests
making the hat as large as possible for optimal humiliation effect. To do this, Elizabeth
cuts out a sector with angle $ and tapes together the resulting edges to form the cone.
Find the magnitude of ø so that the volume of the AJ's dunce cap is maximized.
сар
сар
3) Dan and Mike finished their Calculus Lab early and are enjoying the afternoon at
Horsetooth Reservoir, but soon get into an argument. Dan pushes Mike off of their
"Little Mermaid" floaty 200 feet from shore and paddles off. The icy cold water has
momentarily made Mike forget he is a really good swimmer. Teri is at a point 200 feet
Transcribed Image Text:Page < 1 > of 2 + ZOOM The stories you are about to read about your classmates are true; only the names have been changed to protect the innocent. For each of the stories encountered below you will need to: a) Draw a diagram with all relevant constants and variables labelled. b) Write a function expressing the quantity to be minimized/maximized function of one as a other variable. Show all the work required to derive this formula. c) State the domain of the function covering all possible configurations your problem. for d) Compute the derivative and determine all critical points of the function. e) Analyze all minimum/maximum. critical points and endpoints to determine the 1) To relieve stress from doing homework problems, Julie has taken up gardening. She has designed her garden plot in the shape of a circular sector with radius R and angle 0. Based on the amount of vegetables she wants to grow, Julie has determined the garden should have an area of 30 square feet. She needs to build an electric fence around the perimeter to keep Joe out of the tomatoes. Find the dimensions R and 0 which will minimize the length of fence Julie will need to build. 2) Elizabeth is fed up with AJ's jokes and decides to make him wear a dunce cap in calculus class. She starts out with a paper circle of radius 12 inches and Luke suggests making the hat as large as possible for optimal humiliation effect. To do this, Elizabeth cuts out a sector with angle $ and tapes together the resulting edges to form the cone. Find the magnitude of ø so that the volume of the AJ's dunce cap is maximized. сар сар 3) Dan and Mike finished their Calculus Lab early and are enjoying the afternoon at Horsetooth Reservoir, but soon get into an argument. Dan pushes Mike off of their "Little Mermaid" floaty 200 feet from shore and paddles off. The icy cold water has momentarily made Mike forget he is a really good swimmer. Teri is at a point 200 feet
Page <
2
of 2
ZOOM
+
4) Rachel and Mark are on a roadtrip. Just when they think they can't take being in the
car with each other any longer, they see a billboard advertising
Have your picture taken with the buffalo
at Cory & June's
Hexaflexagon Mega-Warehouse
The sign is 15 feet wide, perpendicular to a straight road, and 20 feet from the road.
Rachel decides to snap a picture of the sign to take back to show everyone in calculus
class. At what point on the road would Rachel have the best view of the billboard as
they drive by? That is, at what point on the road is the angle subtended by the billboard
a maximum? Is the pair tempted to take the 30-mile detour for the photo-op?
5) Tim and Miguel went to a fortune-teller at the state fair who tipped them off that their
next calculus exam would have a problem involving ladders sliding down a wall. Cindy
suggests they should replicate this in real life to gain an advantage on the rest of the
class, so they all decide to bring a long ladder into their dorm. Tim further adds that they
should use as long of a ladder as possible for an optimal experience. Cindy points out
the problem that they must maneuver the ladder through a right-angle turn where the
hallway constricts from 8 feet down to 5 feet wide. What is the longest ladder the trio
can carry horizontally around the corner?
---------
Transcribed Image Text:Page < 2 of 2 ZOOM + 4) Rachel and Mark are on a roadtrip. Just when they think they can't take being in the car with each other any longer, they see a billboard advertising Have your picture taken with the buffalo at Cory & June's Hexaflexagon Mega-Warehouse The sign is 15 feet wide, perpendicular to a straight road, and 20 feet from the road. Rachel decides to snap a picture of the sign to take back to show everyone in calculus class. At what point on the road would Rachel have the best view of the billboard as they drive by? That is, at what point on the road is the angle subtended by the billboard a maximum? Is the pair tempted to take the 30-mile detour for the photo-op? 5) Tim and Miguel went to a fortune-teller at the state fair who tipped them off that their next calculus exam would have a problem involving ladders sliding down a wall. Cindy suggests they should replicate this in real life to gain an advantage on the rest of the class, so they all decide to bring a long ladder into their dorm. Tim further adds that they should use as long of a ladder as possible for an optimal experience. Cindy points out the problem that they must maneuver the ladder through a right-angle turn where the hallway constricts from 8 feet down to 5 feet wide. What is the longest ladder the trio can carry horizontally around the corner? ---------
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