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IceJOKER [234]
2 years ago
9

Test the function x-y²=0 for symmetries.

Mathematics
1 answer:
mafiozo [28]2 years ago
4 0

For Symmetry About Y-Axis, let's try to replace x with −x, and check if the equations still equal:

-x - y² = 0

The equation changed, so there is no symmetry about Y-Axis.

For Symmetry About X-Axis, let's try to replace y with −y, and check if the equations still equal:

x - (-y)² = 0

x - y² = 0

The equation stayed the same, so there is a symmetry in X-Axis.

Lets try Origin Symmetry Replacing x with −x and y with −y:

-x - (-y)² = 0

-x - y² = 0

The equation changed, so there is no Origin Symmetry.

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g100num [7]
The answer to this question is 49
4 0
3 years ago
A coin is rigged so that the probability of tossing a head is 0.61. The coin is tossed until the first time that a head turns up
Fiesta28 [93]

Answer:

For this case the probability of getting a head is p=0.61

And the experiment is "The coin is tossed until the first time that a head turns up"

And we define the variable T="The record the number of tosses/trials up to and including the first head"

So then the best distribution is the Geometric distribution given by:

T \sim Geo (1-p=1-0.61)

Step-by-step explanation:

Previous concepts

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

P(X=x)=(1-p)^{x-1} p

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

X\sim Geo (1-p)

Solution to the problem

For this case the probability of getting a head is p=0.61

And the experiment is "The coin is tossed until the first time that a head turns up"

And we define the variable T="The record the number of tosses/trials up to and including the first head"

So then the best distribution is the Geometric distribution given by:

T \sim Geo (1-p=1-0.61)

3 0
3 years ago
Write the verbal sentence as an equation.<br> Fourteen minus the product of 3 and a number is 26.
Firdavs [7]

Answer:

14-3x=26

Step-by-step explanation:

When it says "is" and then a number, that means that it is the answer. In this case, 26.

Product means multiplying.

8 0
3 years ago
Although retirement is far in your future, it is important to start planning early.
nydimaria [60]

Answer: I would say true.

explanation: Because planning on where you want to work you’ll want to see all the benefits and things you’ll be getting into.

3 0
3 years ago
Read 2 more answers
100,85,70,_,40<br><br><br> What is the number pattern?
nirvana33 [79]

Answer:

55

Step-by-step explanation:

its subtracting 15 each time

3 0
3 years ago
Read 2 more answers
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