Answer:
The constant 2.2 in L(D) represent the brightness in lumens per square inch.
Step-by-step explanation:
Given : The intensity of a light in lumens is the product of the brightness in lumens per square inch and the surface area of the sphere with a radius equal to the distance to the source in inches the function can be used to represent a particular lights intensity.
To find : What does the constant 2.2 in L(D) represent ?
Solution :
The intensity of a light in lumens is the product of the brightness in lumens per square inch and the surface area of the sphere with a radius equal to the distance to the source in inches.
The function given is is the product of two terms,
On comparing with statement,
The intensity of a light in lumens is L(D).
The brightness in lumens per square inch is 2.2.
The surface area of the sphere with a radius equal to the distance to the source in inches is
Therefore, the constant 2.2 in L(D) represent the brightness in lumens per square inch.
Answer:
140
Step-by-step explanation:
you have to first multiply them
-140
since it has to be an aditive inverse you write the opposite
140
Answer:
C. 12
Step-by-step explanation:
We know you have the number 18 and the fraction 2/3. The problem is we want to find out what 2/3 of 18 is. Well, if 18 divided by the denominator of that fraction (3) is 6 than we just add 6 because the question is asking for 2/3 NOT 1/3.