Solved

The Number of Lumens (Time Rate of Flow of Light)L

Question 27

Multiple Choice

The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​
L = -0.294x2 + 97.744x - 664.875, 20 ≤ x ≤ 90
​
Where x is the wattage of the lamp.
​
Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens.
​


A) ​ The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​ L = -0.294x<sup>2</sup> + 97.744x - 664.875, 20 ≤ x ≤ 90 ​ Where x is the wattage of the lamp. ​ Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens. ​ A) ​ 40W B) ​ 30W C) ​ 45W D) ​ 25W E) ​ 35W 40W
B) ​ The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​ L = -0.294x<sup>2</sup> + 97.744x - 664.875, 20 ≤ x ≤ 90 ​ Where x is the wattage of the lamp. ​ Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens. ​ A) ​ 40W B) ​ 30W C) ​ 45W D) ​ 25W E) ​ 35W 30W
C) ​ The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​ L = -0.294x<sup>2</sup> + 97.744x - 664.875, 20 ≤ x ≤ 90 ​ Where x is the wattage of the lamp. ​ Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens. ​ A) ​ 40W B) ​ 30W C) ​ 45W D) ​ 25W E) ​ 35W 45W
D) ​ The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​ L = -0.294x<sup>2</sup> + 97.744x - 664.875, 20 ≤ x ≤ 90 ​ Where x is the wattage of the lamp. ​ Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens. ​ A) ​ 40W B) ​ 30W C) ​ 45W D) ​ 25W E) ​ 35W 25W
E) ​ The number of lumens (time rate of flow of light) L from a fluorescent lamp can be approximated by the model ​ L = -0.294x<sup>2</sup> + 97.744x - 664.875, 20 ≤ x ≤ 90 ​ Where x is the wattage of the lamp. ​ Use a graphing utility to select the graph of the function.Use the graph to estimate the wattage necessary to obtain 2400 lumens. ​ A) ​ 40W B) ​ 30W C) ​ 45W D) ​ 25W E) ​ 35W 35W

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q22: Find the graph of the equation.?

Q23: Find the average rate of change

Q24: Find the zeros of the function

Q25: An object is dropped from a height

Q26: Select the graph of the function

Q28: Use a graphing utility to graph

Q29: Find the coordinates of a second

Q30: Select the graph of the function

Q31: Find the zeroes of the functions

Q32: Write the height h of the