Answer:
9.833333
Step-by-step explanation:
All you have to do is plug in.
x = 1 , y= 8
3x+5=y
3(1) + 5 = 8
3+5 = 8
8=8
They are both equal, yes. The coordinates work out in the equation. Both sides are equal so the coordinates work. The answer is yes.
For this case we have the following functions:
By definition of composition of functions we have:
Then substituting:
So:
Answer:
The expression 
is equal to 
.
<h3>
How to simplify a composite algebraic expression</h3>
In this question we must use properties of <em>real</em> algebra to simplify a given expression as most as possible. We proceed to show each step with respective reason.
- Given
Distributive property/
Existence of the multiplicative inverse/Modulative property- Distributive property/
/Result
To learn more on algebraic expressions, we kindly invite to check this verified question: brainly.com/question/953809
Considering that the sine is negative and that the cosine is positive, the angle is on the fourth quadrant, hence option C is correct.
<h3>What are the signs of the sine and of the cosine in each quadrant?</h3>
- Quadrant 1: Both positive.
- Quadrant 2: Sine positive, cosine negative.
- Quadrant 3: Both negative.
- Quadrant 4: Sine negative, cosine positive.
Hence, since the sine is negative and that the cosine is positive, the angle is on the fourth quadrant, hence option C is correct.
More can be learned about quadrants at brainly.com/question/28021191
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