Answer:
Part A:
given that cos β = 3/5
that means the base line is 3 and the hypotenuse is 5
Note that, The base line 3 is adjacent to β and opposite to α.
Sin α = opposite / adjacent
sin α = 3 /5
Part B:
α and β are complementary angles
The kind of statistical study the zoologist conducted was D. observational study.
<h3>What is observational study in research?</h3>
An observational study serves as a study whereby the researcher simply observes the subjects without interfering with it.
This is different from carrying out experiment on them or just a theoretical approach.
Learn more about research on:
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CHECK THE COMPLETE QUESTION BELOW:
A zoologist researched the feeding habits of lemurs. She collected data by studying the lemurs in a zoo exhibit for a one-month period and drew conclusions based on her data. What kind of statistical study did the zoologist conduct? A. survey B. theoretical study C. experiment D. observational study
Answer:
Carol has only 20p and 10p coins in her purse.
She has three times as many 20p coins as 10p coins. If Carol has £4.20 altogether, how many 20p coins does she have?
Step-by-step explanation:
Let the number be x, then
15 less than a product of 2 and a number
I would like to help but I need the picture
