Concept explainers
To find the water level of Lake Superior in 1997.
Answer to Problem 11E
In 1997, the water level was
Explanation of Solution
Given information :
The table shows the year-to-year changes in the mean January water level of Lake Superior during the period 1997-2001 is given below:
Time period | 1997-1998 | 1998-1999 | 1999-2000 | 2000-2001 |
Change (meters) |
To find the overall change in the water level from 1997-2001, add the changes of water level,
The overall change in the water level from 1997-2001 is obtained as:
Now, let,
So, the level of water in 2001 is obtained as:
But, in 2001, the water level was 182.98 meters.
Therefore, the equation for calculating water level in 2001 is obtained as:
Now, solve for
Hence,
In 1997, the water level was
Chapter 2 Solutions
Holt Mcdougal Larson Pre-algebra: Common Core Practice Workbook
Additional Math Textbook Solutions
Elementary Statistics (13th Edition)
Algebra and Trigonometry (6th Edition)
Pre-Algebra Student Edition
Introductory Statistics
College Algebra (7th Edition)
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
- 1 Matching 10 points Factor and Solve 1)x3-216 0, x = {6,[B]} 2) 16x3 = 54 x-[3/2,[D]] 3)x4x2-42 0 x= [ +/-isqrt(7), [F] } 4)x+3-13-9x x=[+/-1.[H]] 5)x38x2+16x=0, x = {0,[K}} 6) 2x6-10x-48x2-0 x-[0, [M], +/-isqrt(3)) 7) 3x+2x²-8 x = {+/-i sqrt(2), {Q}} 8) 5x³-3x²+32x=2x+18 x = {3/5, [S]} [B] [D] [F] [H] [K] [M] [Q] +/-2 sqrt(2) +/- i sqrt(6) (-3+/-3 i sqrt(3))/4 +/- 1 +/-sqrt(6) +/- 2/3 sqrt(3) 4 -3 +/- 3 i sqrt(3) [S]arrow_forwardThe only problems I need help with ae the last 8 ones, Thanksarrow_forwardGraph without using the calculator y-1 = | x+4 |arrow_forward
- 9:43 AS く Akbar © Printed in the United States 15) Scale: 1 cmal unit on both axes .ill 64% The graph above shows a straight line QT intersecting the y-axis at T. i State the co-ordinates of T. ii Calculate the gradient of QT 16) iii Determine the equation of QT. A (-1, 9) ||| i L Г (5 marks)arrow_forwardPls help.arrow_forwardPls help.arrow_forward
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education