subject
Mathematics, 23.10.2020 17:10 BigGirlsTheBest

A parabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve D(r) = 0.145r^2. What is the radius when the depth is 8 inches? Round to the nearest thousandth of an inch.

1) 4.417 inches
2) 5.252 inches
3) 7.428 inches
4) 20.505 inches

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 18:30
If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?
Answers: 2
question
Mathematics, 21.06.2019 19:30
Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?
Answers: 2
question
Mathematics, 21.06.2019 19:40
Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?
Answers: 1
question
Mathematics, 21.06.2019 20:00
Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212
Answers: 1
You know the right answer?
A parabolic listening device is shaped such that the depth of the bowl depends on its radius and can...
Questions
question
Mathematics, 11.03.2021 21:40
question
Mathematics, 11.03.2021 21:40
question
Mathematics, 11.03.2021 21:40
Questions on the website: 13722362