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lord [1]
3 years ago
7

The cartesian coordinate system can have three dimensions A. true B. false

Mathematics
2 answers:
GrogVix [38]3 years ago
7 0
Its A. True..........
Nana76 [90]3 years ago
6 0

Answer with explanation:

Yes, it is a true statement ,that Cartesian coordinate system can have three dimensions .

There are many types of Cartesian coordinate system, some of them are

1. One Dimensional Cartesian coordinate system →→ Only a single number has to be represented.So, to represent this number you have to draw either a vertical or horizontal line,on which Positive and Negative real numbers are marked on that line.

2. Two Dimensional Cartesian coordinate system →→ An ordered pair, in the form of ,(x,y) has to be represented , with the help of two perpendicular lines,called X and Y axis.

3. Three Dimensional Cartesian coordinate system →→ A triplet is to be represented , that is ,(x,y,z) with the help of three mutually perpendicular lines, called ,x , y and z axes.

So, →→With the Reason Explained above, you can say with surety that,  the Cartesian coordinate system can have three or more dimensions.  

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Answer:

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Step-by-step explanation:

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3 years ago
Evaluate the function at the indicated values if possible. If an indicated value is not in the​ domain, say so.
goldfiish [28.3K]

Answer:

f(-7)=0.

f(2)=-9/5.

f(3) doesn't exist because 3 isn't in the domain of the function.

Step-by-step explanation:

f(x)=\frac{x+7}{x^2-9} is the given function.

We are asked to find:

f(-7)

f(2)

f(3).

f(-7) means to replace x in the expression called f with -7:

Evaluate \frac{x+7}{x^2-9} at x=-7

\frac{(-7)+7}{(-7)^2-9}

\frac{0}{49-9}

\frac{0}{40}

0

So f(-7)=0.

f(2) means to replace x in the expression called f with 2:

Evaluate \frac{x+7}{x^2-9} at x=2

\frac{2+7}{2^2-9}

\frac{9}{4-9}

\frac{9}{-5}

\frac{-9}{5}

So f(2)=-9/5

f(3) means to replace x in the expression called f with 3:

Evaluate \frac{x+7}{x^2-9} at x=3

\frac{3+7}{3^2-9}

\frac{10}{9-9}

\frac{10}{0}

Division by 0 is not allowed so 3 is not in the domain of our function.

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a is the answer as the only change is the gradient being halved,

b would be if it was -1/2 and c would be1/2 x+1/2

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25 and 8 have no common factors, so 25/8 is in simplest form.
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