Answer:
See explanation
Step-by-step explanation:
A mathematical model refers to a mathematical function that describes natural phenomena.
Models are used to approximate natural phenomena hence they are not really exact representations of reality. Thus mathematical models are inherently imperfect and so is our understanding of natural phenomena represented by these mathematical models.
The mathematical parameters used in models to represent real processes are uncertain since they are determined from experiment or represent more than one process.
Lastly, the initial and the boundary conditions in a model may not be explicitly established.
Answer:
4:20
Step-by-step explanation:
The answer should be 4:20
1. Total the number of CD's
2. 4:20 are country
3. Therefore out of 20 CD's there's a probability that 4 will be chosen.
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28= 1,2,4,7,14,28,
44=1,2,4,11,22,44,
Step-by-step explanation:
By Pythagoras' Theorem, we have
Hypotenuse = √[(13.9)² + (10.2)²] = 17.2. (B)
Answer:
Step-by-step explanation:
The given equation of a parabola is,
When we compare this equation with the vertex form of the quadratic equation,
y = a(x - h)² + k
where (h, k) is the vertex,
Vertex of the parabola,
(-3, 4)
y-intercept,
x-intercepts,
(x + 3) = ±√8
x = (3 - 2√2), (3 + 2√2)
Axis of symmetry,
x = -3
Domain:
(-∞, ∞)
Range:
(-∞, 4]