Answer: 6!
Step-by-step explanation:
9 / 1.5 = 6. To make sure, 1.5 x 6 = 9
This shows that it is scaled up 6 times larger.
180 steel rods to be exact
Answer:
64.3 lumens
Step-by-step explanation:
Data provided in the question:
Length of the testing chamber = 35 cm
Light at one end = 10 lumens
Light at other end = 200 lumens
now,
since the variation is linear,
therefore, the gradient of the variation
= 
= 5.43
also,
the darkest end is the end with 10 lumens
therefore,
The lumens at 10 cm from the darkest end
= 10 + 5.43(10)
= 10 + 54.3
= 64.3 lumens
For this case we have the following functions:

By definition of composition of functions we have:

Then substituting:

So:

Answer:
