The probability that an individual is left-handed is 0.16. in a class of 10 students, what is the mean and standard deviation of the number of left-handers in the class? Question solved general 4 months ago 4623
Use spherical coordinates. evaluate (x2 + y2) dv e , where e lies between the spheres x2 + y2 + z2 = 1 and x2 + y2 + z2 = 25. Question solved general 4 months ago 9629
The table gives estimates of the world population, in millions, from 1750 to 2000. year population year population 1750 790 1900 1650 1800 980 1950 2560 1850 1260 2000 6080 (a) use the exponential model and the population figures for 1750 and 1800 to predict the world population in 1900 and 1950. compare with the actual figures Question solved general 4 months ago 5888
How is the distance formula like the pythagorean theorem explain? Question solved general 4 months ago 4989
Evaluate the line integral, where c is the given curve. (x + 9y) dx + x2 dy, c c consists of line segments from (0, 0) to (9, 1) and from (9, 1) to (10, 0) Question solved general 4 months ago 3276
A displacement vector with a magnitude of 20. meters could have perpendicular components with magnitudes of Question solved general 4 months ago 2912
A typical running track is an oval with 74-m-diameter half circles at each end. a runner going once around the track covers a distance of 400 m . suppose a runner, moving at a constant speed, goes once around the track in 1 min 40 s. what is her centripetal acceleration during the turn at each end of the track? Question solved general 4 months ago 1179
A swimming pool can be filled by either or both of two pipes of different diameters. it takes the smaller pipe twice the time that the larger pipe takes to fill the pool. if water flows through both pipes it take 213 hours to fill the pool. how long will it take the larger pipe to fill the pool? [hint: let x be the amount of the pool filled by the small pipe in one hour] Question solved general 4 months ago 5479
A woman 5 ft tall walks at the rate of 3.5 ft/sec away from a streetlight that is 12 ft above the ground. at what rate is the tip of her shadow moving? at what rate is her shadow lengthening? ⇒ Question solved general 4 months ago 3321
A package of 5 pairs of insulated gloves costs 29.45 what is the cost of a single glove? Question solved general 4 months ago 2347
The revenue from selling x shirts is r(x) = 15x.The cost of buying x shirts is c(x) = 7x + 20.The profit from selling x shirts is p(x) = r(x) – c(x).What is p(x)? A. p(x) = 22x – 20 B. p(x) = 22x + 20 C. p(x) = 8x – 20 D. p(x) = 8x + 20 Question solved general 4 months ago 2761
A marathon is 26 miles 385 yards long. That is about 1.4 times 10 to the 5th power feet. How many feet long is half a marathon? Question solved general 4 months ago 2900
A car starts from rest and accelerates uniformly at 3.0 m/s2 toward the north. a second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2 toward the north. how long after the second car starts does it overtake the first car? Question solved general 4 months ago 8131
The volume of air inside a rubber ball with radius r can be found using the function v(r)=4/3 πr3 . What does v[5/7] represent?a. the radius of the rubber ball when the volome equals 5/7 cubic feetb. the volome of the rubber ball when the radius equals 5/7 feetc. that the volume of the rubber ball is 5 cubic feet when the radius is 7 feetd. that the volume of the rubber ball is 7 cubic feet when the radius is 5 feet Question solved general 4 months ago 2311
Molly has 24 muffins,18 breakfast bars,and 12 bottles of juice to be distributed evenly among a certain number of welcome baskets she wants to package the maximum number of welcome baskets that will contain the same combination of muffins breakfast bars and bottles of jucie which shows the correct number of muffins breakfast bars and juice bottles among with the proper explanation circle all that apply Question solved general 4 months ago 6282
A conical tent made of canvas has a base that is 34 feet across and a slant height of 12 feet. To the nearest whole unit, what is the area of the canvas, including the floor? Use 3.14 for π. Question solved general 4 months ago 7913
Harry started a school in the year 2000. The number of students was 500 in the beginning and is increasing at a rate of 13% each year. Use a graph to predict the number of students in the year 2020. Question solved general 4 months ago 3977
A new company estimates its total profit (profit = total revenue minus total cost) as P(x) = x4 – 2x3 – 240x – 35, where P is in hundreds of dollars and x is the number of months elapsed since the company’s start-up. According to the rational zero theorem, what can be the values of x until the company breaks even? Question solved general 4 months ago 4161
Some doctors recommend that men drink 3 liters of water every day . There are approximately 29.6 milliliters in 1 fluid ounce. Which measurement is closest to the number of fluid ounces in 3 liters ? A. 89 fl ozB. 101 fl ozC. 10 fl ozD. 33 fl oz Question solved general 4 months ago 8367