(A) because a right angle is 90 degrees and has a equal eqivalent to get to 100
Answer:
Csc(60)
sin(330)
-4cot(-45)
Step-by-step explanation:
The cosen típic is not mant for use With this type of problem.
The expression for a in terms of c is 
. The correct option is the third option
<h3>Pythagorean theorem </h3>
From the question, we are to determine the expression for a in terms of c
In the given right triangle, we can write that
(<em>Pythagorean theorem</em>)
Thus,
Hence, the expression for a in terms of c is . The correct option is the third option
Learn more on Pythagorean theorem here: brainly.com/question/23994492
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Answer:
x = 75
y = 105
Step-by-step explanation:
Remark
You can find y in two different ways.
One
You can recall that y is the sum of the 2 interior angles not connected to it. Those angles are called the remote interior angles. Or
Two
You can add the three angles to 180 and solve for x. Then since x and y are supplementary, you can find y.
Solution
One
y = 60 + 45
y = 105 Answer
Two
x + 60 + 45 = 180 All triangles have 180 degrees. Solve for x.
x + 105 = 180 Subtract 105 from both sides
x = 180 - 105 Combine
x = 75 Find an equation that relates x and y
x + y = 180 x and y are supplementary they add to 180
75 + y = 180 Subtract 75 from both sides.
y = 180 - 75 Combine
y = 105
