Follow the Order of Operations:
(PEMDAS)
<u>Parenthesis</u> (1)
<u>Exponents</u> (2)
<u>Multiplications</u> (3)
<u>Division</u> (3)
<u>Addition</u> (4)
<u>Subtraction</u> (4)
Note: Multiplication and Division are both on the same level, depending if it first came on the left or not. Same goes to Addition and Subtraction.
Answer: 3.50329. <em>3.5, if round to the nearest tenth.</em>
Answer:
A prospective study
Step-by-step explanation:
A prospective study watches for outcomes, such as the development of a disease (in this case cancer). It also usually involves taking a group of subjects and watching them over a long period of time. The outcome of interest should be common between them (whether certain smoking habits lead to the development of cancer in British doctors).
2/3 <=======3
i think,,,, if not sorry i suck at math
Using the Pythagorean identity, the value of the cosine ratio is 
<h3>How to determine the cosine ratio?</h3>
The given parameter is:
By the Pythagorean identity, we have:
So, we have:
This gives
Evaluate
Take LCM
This gives
Take the square root of both sides
Cosine is positive in the fourth quadrant.
So, we have:
Hence, the cosine value is
Read more about Pythagorean identity at:
brainly.com/question/1969941
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