To solve this problem, we just have to use trigonometric ratios and apply which of the ratios is needed here and proceed to solve. The value of side AC is 2.85 units
<h3>Trigonometric Ratio</h3>
In the given diagram, we have the value of angle and hypothenuse and we are required to find the adjacent side of the triangle.
Data;
- Angle = 32.9 degrees
- Hypothenuse = 3.4
Let's use cosine rule for this.
![cos\theta = \frac{adjacent}{hypothenuse}](https://tex.z-dn.net/?f=cos%5Ctheta%20%3D%20%5Cfrac%7Badjacent%7D%7Bhypothenuse%7D)
Proceed to substitute the values into the equation and solve.
![cos 32.9 = \frac{AC}{3.4} \\AC=3.4cos32.9\\AC = 2.85](https://tex.z-dn.net/?f=cos%2032.9%20%3D%20%5Cfrac%7BAC%7D%7B3.4%7D%20%5C%5CAC%3D3.4cos32.9%5C%5CAC%20%3D%202.85)
From the calculations above, the value of side AC is 2.85 units
Learn more on trigonometric ratio here;
brainly.com/question/11967894
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Given the equation of parabola: y = -x² - 2x - 5
y = ax² + bx + c and negative value of 'a' tell us that it is a downward open parabola whose axis of symmetry would be x = k.
where k is the x-coordinate of vertex of given parabola.
Finding the vertex of parabola, x = ![\frac{-b}{2a} =\frac{-(-2)}{2(-1)} =\frac{2}{-2} =-1](https://tex.z-dn.net/?f=%20%5Cfrac%7B-b%7D%7B2a%7D%20%3D%5Cfrac%7B-%28-2%29%7D%7B2%28-1%29%7D%20%3D%5Cfrac%7B2%7D%7B-2%7D%20%3D-1%20)
So, the axis of symmetry for this parabola is x = -1.
Answer:
B and C are true
Step-by-step explanation: range is y values the graph can have from 0 up
domain in x values the graph can have so all number in either direction left and right