Answer:
Step-by-step explanation:
then our rule is
This is my idea. I hope it can help you.
Answer:
Step-by-step explanation:
We use trigonometry to find the angle of elevation.
From the diagram, the angle of elevation of the sun is 
Recall the mnemonics SOH CAH TOA.
Therefore the angle of elevation of the sun is
See attachment
Answer:
D
Step-by-step explanation:
rule: sum of two angles in triangle, should always be higher then the other angle: 13+9=22,
it should be bellow 22. it can not be D
Answer:
Step-by-step explanation:
ii) Perimeter = 8 + 7 + 17 + 16 + (17-8) + (16-7)
=8+ 7 + 17 +16 + 9 + 9
= 66 m
Area = area of upper rectangle + area of lower rectangle
= 8*7 + 16*9
= 56 + 144
= 200 m²
Answer:
20
Step-by-step explanation:
$400/5 hr = $80 a week, since there are 4 weeks in a month, you would divide $80/4 weeks and it will give you the sum of $20 dollars. So she will need to charge 20.00 a hour in order to meet her monthly expense of $400.
