1. At a certain instant, the length of a rectangle is 3 inches and is increasing...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
1. At a certain instant, the length of a rectangle is 3 inches and is increasing at the rate of 1 inch per minute. At the same instant, the width is 2 inches and is decreasing at the rate of .5 inches per minute. Is the area increasing or decreasing? 2. A boat is pulled into a dock by a rope with one end attached to the front of the boat and the other end passing through a ring attached to the dock at a point 5 feet higher than the front of the boat. The rope is being pulled through the ring at the rate of 0.6 feet per second. How fast is the boat approaching the dock when 13 feet of rope are out? 3. Suppose you take a car trip, traveling east along a very long highway, starting at time t = 0. Let x t be the number of gallons of gasoline used during the first hours, and let s(t be the distance traveled in that time. Because you're using very cheap gasoline that's not good for the engine, your fuel efficiency (measured in miles/gallon) decreases as fuel is consumed. The graph of fuel efficiency as a function of gasoline used is shown in the graph below. ds dx 301 25 201 15 101 51 0 5 10 X 15 x (gallons) 20 1. At a certain instant, the length of a rectangle is 3 inches and is increasing at the rate of 1 inch per minute. At the same instant, the width is 2 inches and is decreasing at the rate of .5 inches per minute. Is the area increasing or decreasing? 2. A boat is pulled into a dock by a rope with one end attached to the front of the boat and the other end passing through a ring attached to the dock at a point 5 feet higher than the front of the boat. The rope is being pulled through the ring at the rate of 0.6 feet per second. How fast is the boat approaching the dock when 13 feet of rope are out? 3. Suppose you take a car trip, traveling east along a very long highway, starting at time t = 0. Let x t be the number of gallons of gasoline used during the first hours, and let s(t be the distance traveled in that time. Because you're using very cheap gasoline that's not good for the engine, your fuel efficiency (measured in miles/gallon) decreases as fuel is consumed. The graph of fuel efficiency as a function of gasoline used is shown in the graph below. ds dx 301 25 201 15 101 51 0 5 10 X 15 x (gallons) 20
Expert Answer:
Answer rating: 100% (QA)
1 To determine whether the area is increasing or decreasing we need to calculate the rate of change of the area of the rectangle The area of a rectang... View the full answer
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
Track a futures contract for 5 consecutive days record the prices and write a short summary (150-200 words) describing how and why prices moved the way they did. You will be graded upon correctly...
-
What are the three key elements in the entrepreneurship process in new ventures?
-
Consider a small country applying a tariff t to imports of a good like that represented in Figure 8-9. a. Suppose that the country decides to reduce its tariff to t. Redraw the graphs for the Home...
-
Consider an underlying linear model, \(y_{i}^{*}=\mathbf{x}_{i}^{\prime} \boldsymbol{\beta}+\epsilon_{i}^{*}\), where \(\epsilon_{i}^{*}\) is normally distributed with mean zero and variance...
-
For each of the following events affecting the stockholders equity of Willis, indicate whether the event would: increase retained earnings (IRE), decrease retained earnings (DRE), increase common...
-
A call center has four categories of employees, each paid a particular wage. Managers are paid $25 an hour, clerks are paid $15 an hour, technicians are paid $20 an hour, and administrative...
-
Veryclear Glassware is a new business owned by Skyler Peoples, the company president. Skyler's first year of operation commenced on January 1, 2022. EIN: 78-7654398 Address: 23051 Old Redwood...
-
Take a piece of paper and set up a simple five-column chart. Write the following ratios in the left- most column. Now label the other four columns for the four companies we looked at in Chapter 1:...
-
You roll a \(0.250-\mathrm{kg}\) wooden croquet ball toward a \(0.050-\mathrm{kg}\) golf ball at rest. (a) If the wooden ball travels at \(5.0 \mathrm{~m} / \mathrm{s}\) before the impact with the...
-
After coming down a slope, a 60-kg skier is coasting northward on a level, snowy surface at a constant \(15 \mathrm{~m} / \mathrm{s}\). Her \(5.0-\mathrm{kg}\) cat, initially running southward at...
-
A ball of inertia \(m\) bounces elastically from the floor. It has \(x\) component of velocity \(+v\) just before it hits the floor. What is the magnitude of its change in momentum in the collision?...
-
Take the common case where a moving object of inertia \(m_{\text {moving }}\) collides with a stationary object of inertia \(m_{\text {rest }}\). (a) Show that the fraction of kinetic energy not...
-
An experienced bartender knows just the right initial speed of a glass of beer to get it to come to a stop in front any customer sitting along the bar. Say the initial speed needed to move a glass...
-
Joe Chaney joined your architectural firm two years ago as a draftsman. He is 35 years old and has been a draftsman since graduating from a two-year technical school right after high school. He is...
-
Differentiate the following terms/concepts: a. Personality types and money attitudes b. Planners and avoiders c. Moderating and adapting to biases d. "Perfectible judges" and "incorrigible judges"
-
Use the product rule to simplify the expressions in Exercises 1322. In Exercises 1722, assume that variables represent nonnegative real numbers. 2x. V6x
-
In Exercises 8996, solve each equation. 2 - [4(53)] = 8x -
-
In Exercises 110, find the slope of the line passing through each pair of points or state that the slope is undefined. Then indicate whether the line through the points rises, falls, is horizontal,...
-
Today's world is data driven with businesses having a deluge of available information available for decision making. Data needs to be given the appropriate place in a companys strategy, but decision...
-
Discuss whether an asset needs to be legally owned to be recorded as an asset on the statement of financial position.
-
Entities are expected to perform in environmental, governance and social areas as well as profit (unless a not-for-profit entity). List some key performance indicators applicable to each sphere.
Study smarter with the SolutionInn App