subject
Mathematics, 19.08.2020 14:01 cyndy50

Please help, I am desperate!?! Will name Brainliest!! Suppose that a spotlight is used for lighting objects at many different distances and that the area A of the light circle produced is related to the distance x to the lighted object by A=0.1x^2.

a. If the spotlight produces 250 lumens of light energy, what function gives the intensity of the light I, (in lumens per square foot) as a function of the distance x in feet from the spotlight to its target?

b. Write and solve equations that match these questions about the light intensity from the spotlight.

i. What is the intensity of light on an object that is 20 feet from the spotlight source?

ii. How far from the spotlight is an object that recieves 100 lumens of light per square foot?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable
Answers: 1
question
Mathematics, 21.06.2019 19:00
Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1
Answers: 1
question
Mathematics, 22.06.2019 00:30
Given abc find the values of x and y. in your final answer, include all of your calculations.
Answers: 1
question
Mathematics, 22.06.2019 02:00
Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?
Answers: 2
You know the right answer?
Please help, I am desperate!?! Will name Brainliest!! Suppose that a spotlight is used for lighting...
Questions
Questions on the website: 13722363