Answer:
18.174x
Step-by-step explanation:
The value of x = 1 so the correct answer is option D.
The complete question is attached in the image below.
<h3 /><h3>What is coordinate geometry?</h3>
A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.
Given that triangles ABC and DEC are congruent to each other.
We are to find the value of x.
From the figure, we note that
AB = 4x - 1, BC = 4, AC = 5, DE = x+2, CE = 4 and EC = 5.
Since ΔABC ≅ ΔDEC, their corresponding sides will be equal.
Therefore, we must have
AB = DE
4x - 1 = x + 2
4x - x = 2 + 1
3x = 3
x = 1
Thus, the required value of x is 1.
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Answer:
Sin O =
Cos O =
Cot O =
Csc O =
Sec O =
Step-by-step explanation:
Do you know the definitions of all the trig functions? If not, you need to memorize them. Also, you need to memorize which functions are positive in each quadrant. All functions are positive in quad I, sine and reciprocal are positive in quad II, tan and reciprocal are positive in quad III, and cos and reciprocal are positive in quad IV. OK?
Tan of an angle is opposite side/adjacent side of a right triangle
If the tan O = - 2. let the opp. side = 2 and adjacent side = 1. Then the hypotenuse =
Sine is positve and equals opp/hyp =
Cos is negative and equals adj/hyp =
Cot is negative and is the reciprocal of the tan or adj/opp =
Csc is positive and is the reciprocal of the sine or hyp/opp =
Sec is negative and is the reciprocal of the cos or hyp/adj =
Answer:
59.2
Step-by-step explanation:
A triangle equals a total of 180
102.5 + 18.3 = 120.5
180 - 120.5
= 59.2
Answer:
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Step-by-step explanation: