In a class of 40 students, 8 are in the drama club and 12 are in the art club. If a student is selected at random, what is the p
2 answers:
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Answer:
Step-by-step explanation:
To solve this problem you must know the formula of subtraction of angles for the function cosx.
The formula is:
We can write 30° as: 45° - 15°
Then:
Using the formula for subtraction of angles we have:
Notice that we have achieved the expression shown in the statement
Finally:
<u>Part A</u>
By the distance formula,
<u>Part B</u>
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<u>Part C</u>
The triangle is scalene because each side has a different length.