Answer:
- 3rd quadrant: 210°
- 4th quadrant: 330°
Step-by-step explanation:
The equation can be rearranged by subtracting 1, then dividing by 2. Doing so gives you ...
... sin(x) = -1/2
The sine of an angle is the y-coordinate of the point where its terminal ray intersects the unit circle. A horizontal line at y=-1/2 intersects the unit circle in two places. (Refer to the attached diagram.) In each case, the reference angle (the smallest angle made with the x-axis) is 30°.
Conventionally, we measure angles counterclockwise from the +x axis, so the 3rd-quadrant angle (between 180° and 270°) will be 180°+30° = 210°.
The 4th-quadrant angle (between 270° and 360°) will be 360°-30° = 330°.
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<em>Comment on the diagram</em>
The geometry program used to create the figure decided to show the angles measured clockwise. To get the answers you want, you need to subtract the angles shown from 360°.
<em>Comment on calculator solutions</em>
If you use a calculator (in degrees mode) to find the angle whose sine is -1/2, it will tell you sin⁻¹(-0.5) is -30°. This means the angle is 30° measured clockwise from the +x axis. Of course, the value you want in that quadrant is 360°-30° = 330°. You have to understand that the third quadrant angle can be found by adding the reference angle (30°) to 180°.
Your answer is B scope sorry if I’m wrong
Answer: 12q is greater than 36.
Step-by-step explanation: First, you need to realize that q is a variable. So it can be 12(3) or 12(4).
Answer: 9k+9f+9h
Step-by-step explanation:
add the numbers with the same variable
1) Here, as the two angles are same, it would be isosceles triangle with two equal sides, so x = 5
y = x√2
y = 5√2 or 7.05
In short, Your Answers would be: x = 5 & y = 7.05
2) We know, Sin Ф = P / H
Sin 30 = 27 / H
1/2 = 27 / H
H = 27 * 2
H = 54
In short, Your Answer would be 54 Feet
Hope this helps!