Answer:
1.SAS
2. AAS
3.SAS
4.SSS
5.SSS
6.SSS
Step-by-step explanation:
Answer: OPTION C.
Step-by-step explanation:
Observe the triangle ABC attached.
Notice that the angle of depression is represented with
.
Knowing that the top of a lighthouse is 260 feet above water and the ship is 270 feet offshore, you can find the value of
by using arctangent:
![\alpha= arctan(\frac{opposite}{adjacent})](https://tex.z-dn.net/?f=%5Calpha%3D%20arctan%28%5Cfrac%7Bopposite%7D%7Badjacent%7D%29)
In this case you can identify that:
![opposite=260\\adjacent=270](https://tex.z-dn.net/?f=opposite%3D260%5C%5Cadjacent%3D270)
Therefore, substuting values into
, you get that the angle of depression is:
![\alpha= arctan(\frac{260}{270})\\\\\alpha=43.92\°](https://tex.z-dn.net/?f=%5Calpha%3D%20arctan%28%5Cfrac%7B260%7D%7B270%7D%29%5C%5C%5C%5C%5Calpha%3D43.92%5C%C2%B0)
It will take total 90 minutes to finish the book and 60 minutes to read the left 40 pages.
<h3>What is Ratio and Proportion ?</h3>
When two numbers can be written as p/q is called a Ratio , and when two ratios are equal they are said to be in proportion .
It is given that
Jeremy is reading a 60-page book.
The time taken to read 20 pages is 30 minutes
Then it can be written as 20:30 = 2:3
The rate of reading is same so To read the rest 40 pages is given by
40:x
40: x = 2:3
40*3/2 = x
x = 60 minutes
Therefore it will take total 90 minutes to finish the book and 60 minutes to read the left 40 pages.
To know more about Ratio and Proportion
brainly.com/question/26974513
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Answer:
15
Step-by-step explanation:
75/5 = 15
This spilts the 75 students into 5 different groups and each one has 15 which is 1/5 of the students