Concept explainers
Modeling Data The table shows the net sales x (in billions of dollars), the total assets y (in billions of dollars), and the share holder's equity - (in billions of dollars) for Walmart for the years 2010 through 2015. (Source: Wal-Mart Stares, Inc.)
Year |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
x |
405.0 |
418.5 |
443.4 |
465.6 |
473.1 |
482.2 |
y |
170.7 |
180.8 |
193.4 |
203.1 |
204.8 |
203.7 |
z |
70.7 |
68.5 |
71.3 |
76.3 |
76.3 |
81.4 |
A model for the data is
(a) Complete a fourth row in the table using the model to approximate ? for the given values of x and y. Compare the approximations with the actual values of x.
(b) Which of the two variables in this model has more influence on share holder's equity? Explain.
(c) Simplify the expression for f(x, 150) and interpret its meaning in the context of the problem.
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
Multivariable Calculus
- ||A||=23 45° Find the EXACT components of the vector above using the angle shown.arrow_forwardGiven ƒ = (10, -10) and q = (-8, −7), find ||ƒ— q|| and dƒ-9. Give EXACT answers. You do NOT have to simplify your radicals!arrow_forwardFind a vector (u) with magnitude 7 in the direction of v = (2,4) Give EXACT answer. You do NOT have to simplify your radicals!arrow_forward
- Given g = (-5, 10) and u = (5, 2), find -4ğ - 6.arrow_forwardGiven the vector v→=⟨3,-5⟩, find the magnitude and angle in which the vector points (measured in radians counterclockwise from the positive x-axis and 0≤θ<2π). Round each decimal number to two places.arrow_forwardplease include radicals in answerarrow_forward
- 3 4/3 3213 + 8 for 1 ≤x≤8. Find the length of the curve y=xarrow_forwardGiven that the outward flux of a vector field through the sphere of radius r centered at the origin is 5(1 cos(2r)) sin(r), and D is the value of the divergence of the vector field at the origin, the value of sin (2D) is -0.998 0.616 0.963 0.486 0.835 -0.070 -0.668 -0.129arrow_forward10 The hypotenuse of a right triangle has one end at the origin and one end on the curve y = Express the area of the triangle as a function of x. A(x) =arrow_forward
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice UniversityGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage