Concept explainers
In each of Exercises 7 –12, match the phrase with the most appropriate choice from the following list.
a.
b. 2
c.
d.
e.
f. 3
_________The y -intercept of the graph of
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Elementary and Intermediate Algebra: Concepts and Applications (7th Edition)
- America is getting older. The graph shows the projected elderly U.S. population for ages 65–84 and for ages 85 and older.The formula E = 5.8√x + 56.4 models the projected number of elderly Americans ages 65–84, E, in millions, x years after 2020.a. Use the formula to find the projected increase in the number of Americans ages 65–84, in millions, from 2030 to 2060. Express this difference in simplified radicalform.b. Use a calculator and write your answer in part (a) to the nearest tenth. Does this rounded decimal overestimate or underestimate the difference in the projected data shown by the bar graph ? By how much?arrow_forwardThe average amount A (in pounds per person) of fish and shellfish consumed in the UnitedStates during the period 1992–2001 can be modeled by A = (3.2x + 260)/(52x + 3800) where x is the number of years since 1992.Rewrite the model so that it has only whole number coefficients. Then simplify the model.arrow_forward(3.7) #2arrow_forward
- 6. (a). State the Stokes' Theorem. (b). Use the Stokes' Theorem as stated in (a) to evaluate the line integral: F- dř F = xyi+ 2yz j+ xz k where: and C is the boundary of the plane z = 1- y as shown in Figure 1. Assume C is oriented anti-clockwise as viewed from above.arrow_forwardGraph the points A(3, 2), B ( − 2, 1), C (3, − 4), D( − 2, − 3), E ( − 3, 0), F (0, 2),G(0, 0).arrow_forwardPlease show all steps for part a.arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage