/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 11 Sea levels were most recently at... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Sea levels were most recently at a low point about 22,000 years ago. \({ }^{2}\) Since then they have risen approximately 130 meters. Find the average rate of change of the sea level during this time period.

Short Answer

Expert verified
Answer: The average rate of change of the sea level during the past 22,000 years is approximately 0.0059 meters per year.

Step by step solution

01

Identify the given information

The total time period is 22,000 years, and the total change in sea levels is 130 meters.
02

Calculate the average rate of change

To find the average rate of change, we divide the total change in sea levels by the total amount of time: Average rate of change = \(\frac{Total \: Change \: in \: Sea \: Levels}{Total \: Amount \: of \: Time}\)
03

Plug in the given values and compute the average rate of change

\(\frac{130 \: meters}{22,000 \: years} = \frac{13}{2,200}\: \frac{meters}{years} = 0.0059 \: \frac{meters}{years}\)
04

Interpret the result

The average rate of change of the sea level during the past 22,000 years is approximately 0.0059 meters per year. This means that, on average, the sea level has risen 0.0059 meters each year over the past 22,000 years.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Sea Level Rise
Sea level rise refers to an increase in the level of the world's oceans, primarily caused by factors like melting ice caps and glaciers, and the thermal expansion of water as it warms. Over the course of thousands of years, significant changes in sea levels can occur due to natural phenomena, including ice ages and interglacial periods. Approximately 22,000 years ago, during the last glacial period, sea levels were at their lowest point. Since then, they have risen by about 130 meters.
This gradual increase highlights the dynamic nature of Earth's climate and the ongoing changes in our environment. Understanding sea level rise is critical, as it impacts coastal communities and ecosystems.
Rate of Change Calculation
Rate of change is a mathematical concept used to quantify how one quantity changes in relation to another. In the context of sea level rise, it helps us understand how quickly the sea level is changing over a period of time. To calculate the average rate of change, you need two main pieces of information: the total change in sea level and the total time period over which this change occurred.
The formula for the average rate of change is:
  • Average rate of change = \( \frac{\text{Total Change in Sea Levels}}{\text{Total Amount of Time}} \)
Plugging in the values from our example, where sea levels rose 130 meters over 22,000 years, we calculate:
  • Average rate of change = \( \frac{130 \,meters}{22,000 \,years} = 0.0059 \,\frac{meters}{year} \)
This means that, on average, the sea level rose by 0.0059 meters per year during this period.
Mathematical Interpretation
Mathematical interpretation involves analyzing the numbers and calculations to derive meaningful insights about a situation. In the exercise given, interpreting the average rate of change of sea level rise is crucial. It tells us how significant the increase has been over a long historical period. Though 0.0059 meters per year might seem like a small figure, cumulative over thousands of years, it leads to a substantial total increase.
This small yearly increment underscores the importance of long-term data analysis and awareness. It helps scientists and policymakers plan for future developments and challenges brought by sea level rise. Through mathematical interpretation, one can appreciate both the shared impact of natural events in Earth's history and the need for sustainable strategies to mitigate potential consequences.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In Table 4.8 , for which values of \(x\) is (a) \(f(x)>g(x) ?\) (b) \(\quad f(x)=g(x) ?\) (c) \(f(x)=0 ?\) (d) \(g(x)=0\) ? $$ \begin{array}{c|c|c|c|c|c|c|c|c} \hline x & -2 & -1 & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline f(x) & 4 & 1 & 0 & 1 & 4 & 9 & 16 & 25 \\ \hline g(x) & 1 / 4 & 1 / 2 & 1 & 2 & 4 & 8 & 16 & 32 \\ \hline \end{array} $$

To calculate the balance after investing \(P\) dollars for two years at \(5 \%\) interest, Sharif adds \(5 \%\) of \(P\) to \(P\), and then adds \(5 \%\) of the result of this calculation to itself. Donald multiplies \(P\) by \(1.05,\) and then multiplies the result of this by 1.05 again. (a) Write expressions for each calculation. (b) Do the expressions in (a) define the same function?

Methane is a greenhouse gas implicated as a contributor to global warming. Answer based on the table of values of \(Q=w(t),\) the atmospheric methane level in parts per billion (ppb) \(t\) years after \(1980 .^{5}\) $$\begin{aligned}&\text { Table } 4.15\\\&\begin{array}{c|c|c|c|c|c|c} \hline t & 0 & 5 & 10 & 15 & 20 & 25 \\\\\hline Q & 1575 & 1660 & 1715 & 1750 & 1770 & 1775 \\ \hline\end{array}\end{aligned}$$ Show that \(\begin{array}{l}\text { Average rate of change } \\ \text { from } 1995 \text { to } 2000\end{array}<\begin{array}{c}\text { Average rate of change } \\ \text { from } 2000 \text { to } 2005 .\end{array}\) Does this mean the average methane level is going down? If not, what does it mean?

The required cooling capacity, in BTUs, for a room air conditioner is proportional to the area of the room being cooled. A room of 280 square feet requires an air conditioner whose cooling capacity is 5600 BTUs. (a) What is the constant of proportionality, and what are its units? (b) If an air conditioner has a cooling capacity of 10,000 BTUs, how large a room can it cool?

For each of the formulas in Exercises 5-13, is \(y\) directly proportional to \(x ?\) If so, give the constant of proportionality. $$ y=\sqrt{5} \cdot x $$

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.