subject
Mathematics, 08.05.2021 01:50 aurelio1121

A spotlight is made by placing a strong light bulb inside a reflective paraboloid formed by rotating the parabola x2=7y around its axis of symmetry (assume that x and y are in units of inches). In order to have the brightest, most concentrated light beam, how far from the vertex should the bulb be placed? Express your answer as a fraction or a decimal rounded to two decimal places.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:00
Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).
Answers: 1
question
Mathematics, 21.06.2019 22:20
Which of the following is missing in the explicit formula for the compound interest geometric sequence below?
Answers: 1
question
Mathematics, 21.06.2019 22:30
What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6
Answers: 1
question
Mathematics, 22.06.2019 01:20
Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.
Answers: 2
You know the right answer?
A spotlight is made by placing a strong light bulb inside a reflective paraboloid formed by rotating...
Questions
question
Biology, 22.12.2020 23:40
question
Mathematics, 22.12.2020 23:50
question
Law, 22.12.2020 23:50
question
Mathematics, 22.12.2020 23:50
question
Mathematics, 22.12.2020 23:50
question
SAT, 22.12.2020 23:50
question
Mathematics, 22.12.2020 23:50
Questions on the website: 13722367