A = 1/2bh
27 = 1/2 x^2
x^2 = 54
x = 7.3
answer
x = 7.3
Based on definition of <em>unit</em> circle and <em>angle</em> properties on <em>Cartesian</em> plane, we find the following results: A: π/5, B: 3π/7, C: 4π/3.
<h3>How to determine angles in a unit circle</h3>
<em>Units</em> circles are commonly used to understand angles and <em>trigonometric</em> functions in a simple way. Vectors in a <em>unit</em> circle are <em>ordered</em> pairs of <em>polar</em> form: (x, y) = (cos θ, sin θ).
To solve this problem, we must take these tips into account:
- Angles in the <em>first</em> quadrant are within 0 < θ < π/2.
- Angles in the <em>second</em> quadrant are within π/2 < θ < π.
- Angles in the <em>third</em> quadrant are within π < θ < 3π/2.
- Angles in the <em>fourth</em> quadrant are within 3π/2 < θ < 2π.
Then, we have the following results: A: π/5, B: 3π/7, C: 4π/3.
To learn more on angles: brainly.com/question/13954458
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Answer:
- y = 3(x -3)^2 +1
- y = 3x^2 -18x +28
Step-by-step explanation:
For vertex (h, k) and vertical scale factor "a", the vertex form of the equation of a parabola is ...
y = a(x -h)^2 +k
For (h, k) = (3, 1) and a = 3, the equation in vertex form is ...
y = 3(x -3)^2 +1
__
Expanding this gives the equation in standard form.
y = 3(x^2 -6x +9) +1
y = 3x^2 -18x +28
Answer: C
Step-by-step explanation:
Crude mortality rate= total no of deaths in 1 year ÷ total population per 1000
total number of death that year 1985 is 1000 and the total population is 100000
= 1000/100,000
= 10 per 1000.
