Mathematics, 25.11.2021 06:00, boo2023
The reflector of a flashlight is in the shape of a parabolic of revolution. Its diameter is 8 centimeters and it’s depth is 4 centimeters. How far from the vertex should the light bulb be placed so that the rays will be reflected parallel to the axis?
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 17:00, TheRunningPotatoe245
Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false
Answers: 2
Mathematics, 21.06.2019 20:50, kidpryo1
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Do you know the correct answer?
The reflector of a flashlight is in the shape of a parabolic of revolution. Its diameter is 8 centim...
Questions in other subjects:
