Concept explainers
For Exercises 61-62, describe the differences in the graphs of
Want to see the full answer?
Check out a sample textbook solutionChapter 11 Solutions
Aleks 360 Access Code (18 weeks) for College Algebra & Trigonometry
- considering that prolonged exposure to sounds above 85 decibles can cause hearing damage or loss, and considering that a gunshot from a 0.22 rimfire rifle has an intensity of about I=(2.5times10^13)Io, should you follow the rules and wear ear protection when relaxing at the rifle range?arrow_forwardI found the two values of t, but I’m not sure what to do from therearrow_forwardHow did E(XY) = E(X)E(Y) if it is not stated that they are independentarrow_forward
- Sketch the graphs of the beta densities having(a) α = 2 and β = 2;(b) α = 12 and β = 1;(c) α = 2 and β = 12 ;(d) α = 2 and β = 5.arrow_forwardThe National Weather Service uses the following formula to calculate the wind chill:W = 35.74 + 0.6215 Ta − 35.75 V0.16 + 0.4275 Ta V0.16where W is the wind chill temperature in ◦F, Ta is the air temperature in ◦F, and V is thewind speed in miles per hour. Note that W is defined only for air temperatures at or lowerthan 50◦F and wind speeds above 3 miles per hour.(a) Suppose the air temperature is 42◦ and the wind speed is 7 miles per hour. Find thewind chill temperature. Round your answer to two decimal places.(b) Suppose the air temperature is 37◦F and the wind chill temperature is 30◦F. Find thewind speed. Round your answer to two decimal places.arrow_forwardWhich of the following describes a spurious relationship between X, Y, and Z? Select one: a. Z causes X, which causes Y b. Z has no effect on the relationship between X and Y c. Z causes both X and Y d. X causes Z, which causes Yarrow_forward
- Find the Wronskian for the set of functions.{e3x, sin 2x}arrow_forwardAccording to the South Air Quality Management, the level of nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in downtown LA is approximated by A(t) = 0.063t3(t - 7)4 + 20.2 ; (0 < t < 7), where A(t) is measured in pollutant standard index and t is measured in hours, with t 0 corresponding to 7am. Find A'(3). Group of answer choicesarrow_forwardI do not understand how to apply the chain rule. Let f(u)=u^1/3 g(x)=u u=1+12x^2 Find (fog)'(1)arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage