A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produced by the light bulb decreas
1 answer:
You might be interested in
Answer:
B. 120
Step-by-step explanation:
10% =
No. of left-handed students = × 1,200
= 120
<h3>Answer: 20.3</h3>
Work Shown:
tan(angle) = opposite/adjacent
tan(B) = AC/AB
tan(67) = x/8.6
8.6*tan(67) = x
x = 8.6*tan(67)
x = 20.2603303460843 ... make sure your calculator is in degree mode
x = 20.3 .... rounding to 3 significant figures
see diagram below