Answer: The value of absorbance is 0.3010
Step-by-step explanation:
Transmittance,(T)= 50%
Absorbance, (A)= ?

Transmittance and absorbance are inversely related:

Hence,the value of absorbance is 0.3010 when transmittance was 50%.
28/7 + 6/3 first divide 28/7
4 + 6/3 the divide 6/3
4 + 3 and then add them up which is 7
7 divide 1/2
Which is 14
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Answer:
B
Step-by-step explanation:
If you plug in -9 you will get -11 for both side.
Answer:
1/20 or 0.05
Step-by-step explanation:
Assuming that all five posters are different, the number of ways to randomly place those posters is given by:

If we want the largest to be in the center and the next largest to be on its left, two poster will have a set position and only three could be randomized:

Therefore, the probability is:

The probability is 1/20 or 0.05.
<span>CD = 24
Triangles ABX and CDX are similar triangles. So the ratio of lengths between corresponding legs of the triangles will have the same value. You know that they're similar triangles because both of them are right triangles (so you know that one angle is the same in both) and that arc draw on both angles AXB and CXD indicate that those angles match as well. That tells you there's a second angle that's matching in both triangles, and because two of the angles match, you also know that the unmarked angle matches as well since all the angles in a triangle have to add up to 180 degrees.
So you know that AB/CD = BX/DX. Substitute known values and you get
AB/CD = BX/DX
12/CD = 2.5/5
Now solve for CD
12/CD = 2.5/5
12/CD = 1/2
24/CD = 1
24 = 1 * CD
24 = CD
So the value of CD is 24.</span>