Answer:
Step by step
Remember, a reference angle is a positive acute angle that represents an angle θ of any measurement.
a)
, then its reference angle is
b)
is in the second cuadrant, then its reference angle is
c)
, then it is in the first cuadrant and the reference angle is .
d)
and it is in the third cuadrant, then its reference angle is
This is a question that can be solved with Pythagorean Theorem since it is a right triangle. The longest side, 29, is the hypotenuse and the sides 21 and x are the legs. So, the Pythagorean Theorem states,
Where,
c is the Hypotenuse, a and b are the legs. Putting the respective values gives us,
So, 20 is the side length of x.
ANSWER: 20
<h3>Answer:</h3>
The Slope is
<h2>Explanation:</h2>
Notice that both the points, and , are on the line. So we can use those points to calculate the slope. Recall that that slope of the line can be calculated by if we have the points, and .
<h3>Calculating for the slope of the line:</h3>
Given:
Answer:
prime
Step-by-step explanation:
x^2 + 10x – 18
What two numbers multiply to -18 and add to +10
There are no numbers that multiply to -18 and add to 10
-1 *18 = -18 -1 +18 = 17
-2 *9 = -18 -2 +9 = 7
This cannot be factored