Mathematics, 15.07.2019 23:20 coltbergstrom
1. the national highway traffic safety administration indicated that 284 people died between 1990 and 2007 as a result of an injury caused by an airbag. newer airbags open at a speed proportional to the speed of an impact. older models open at a constant speed, up to 200 mph, equal to the force of a heavyweight knockout punch. a random sample of 40 older-model airbags was obtained and tested. the average opening speed for each older-model airbag was 173.88. airbag opening speed is normally distributed with ο³ο =10 mph. compute a 90% confidence interval for the mean opening speed in older-model airbags. be sure to check all necessary assumptions and conditions, and interpret your interval within the context of the problem.
Answers: 3
Mathematics, 21.06.2019 20:30
Daryl factors the polynomial p(x)=x3+x2β26x+24 to rewrite it as p(x)=(x+6)(xβ4)(xβ1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(β4)=0 p(β1)=0 p(6)=0 p(4)=0 p(β6)=0
Answers: 1
Mathematics, 21.06.2019 22:30
Write the equation of a line that is perpendicular to the given line and that passes through the given point. β3x β 6y = 17; (6, 3) y = x β 9 y = 2x β 9 y = β2x β 9 y = x + 0 3. is the relationship shown by the data linear? if so, model the data with an equation. x y 1 5 5 10 9 15 13 20 the relationship is linear; y β 5 = (x β 1). the relationship is not linear. the relationship is linear; y β 5 = (x β 1). the relationship is linear; y β 1 = (x β 5). write an equation in point-slope form for the line through the given point with the given slope. (β10, β1); m = y + 10 = (x + 1) y β 1 = (x β 10) y β 1 = (x + 10) y + 1 = (x + 10) 5. write an equation for each translation of . 6.5 units up y + 6.5 = | x | y = | 6.5 x | y = | x | + 6.5 y = | x | β 6.5 6. write an equation for each translation of . 5.5 units right y = | x | + 5.5 y = | x β 5.5 | y = | x | β 5.5 y = | x + 5.5 | 7. which equation translates y = | x | by 8 units to the left? y = | x | β 8 y = | x | + 8 y = | x β 8| y = | x + 8|
Answers: 1
Mathematics, 21.06.2019 22:50
Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288
Answers: 1
Mathematics, 21.06.2019 23:00
Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?
Answers: 1
1. the national highway traffic safety administration indicated that 284 people died between 1990 an...
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