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swat32
3 years ago
7

Can we combine different functions (quadratic, linear, exponential, cube root) into one piecewise function? If the answer is yes

, then why?
Plzzzz help
Mathematics
1 answer:
yanalaym [24]3 years ago
8 0

Answer: yes, because it is useful to describe changes in the behavior of the thing we are describing.

Step-by-step explanation:

A piecewise function f(x) is a function that is "different" depending on the range of the values of x, this is for example:

y = x -----> if x < 0

y = x^2 ----- if x ≥ 0

This is used to represent changes in the behavior of the thing we are describing.

For example, suppose an object that is moving with constant velocity, the velocity graph will be a constant line.

Now, the object suddenly, at a time t = t0 accelerates to a constant acceleration A, now the graph of the velocity is a linear graph with slope equal to A.

So this situation can be represent this with a piecewise function:

V(t) = c -----> if t < t0

V(t) = c + A*t -----> if t ≥ t0

So the answer is yes, we can.

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Two cards are drawn from a standard deck without replacement. What is the probability that the first card is a spade and the sec
Verizon [17]

Answer:

The answer is 0.123.

Step-by-step explanation:

You want to find the intersection between P(Spade) and P(Red). Knowing that there's no replacement, the probability will be given by the formula:

⇒ P(Spade∩Red) = P(Spade)*P(Red/Spade)

⇒ P(Spade∩Red) = P(Red)*P(Spade/Red)

Either formula works, but I'm going to choose to work with the first formula.

Therefore:

P(Spade) = \frac{13}{52}

P(Red/Spade) =  \frac{26}{52-1}

So:

P(Spade∩Red) = \frac{13}{52}*\frac{26}{51}= \frac{13}{102} =  0.123

3 0
2 years ago
Which bicondtonal is not a good definition
Klio2033 [76]

Answer:

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6 0
2 years ago
1/4 the difference of 4/6 + 3/12
Soloha48 [4]
The answer would be about 8/12 because you must convert 4/6 into 8/12. 8/12 + 3/12=11/12 
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5 0
3 years ago
HALP!!! I DON'T UNDERSTAND!!!!!
irina [24]
To find the percent of error divide how off the wrong answer was by the right number, then multiply by 100.  
Bryan's guess of 730 was 120 less than the actual number so you would divide 120 by 850. 120/850 = 0.141  
Then we would multiply that by 100.  0.141 * 100 = 14.1  
His percent of error was 14.1%. The percent of error is negative since his guess was less than the right answer.

3 0
3 years ago
What is the approximate circumference of a circle with a radius of km? Use A. km B. km C. km D. km Question Resources
Phoenix [80]
In order to calculate the Circumference, You can Use the formula:

C = 2πr
C = πd

They are valid one's, depends, on the given value, either diameter or radius

Hope this helps!
6 0
3 years ago
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