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denpristay [2]
4 years ago
13

Use algebraic means to show that x^2 + y^2 = 8 is not a function. Explain your process.

Mathematics
1 answer:
11Alexandr11 [23.1K]4 years ago
5 0

Answer:

For a single value of x function has more than one corresponding value of y which satisfies the equation.

Step-by-step explanation:

Function: A relationship between a set of inputs and a set of possible outputs, where exactly one output is associated with each input.

It means for an equation to represent a function any single value of  x there should be only one corresponding value of  y which satisfies the equation.

Now consider the given equation.

x^2 + y^2 = 8

If we put x=0 then we get two value of y i.e \sqrt8 and -\sqrt8 which satisfy the equation  and therefore the equation is not a function.

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eduard

Answer:

its going to be 2&3(x+2)(x+3)

Step-by-step explanation:

8 0
3 years ago
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A regular pentagon has an apothem of 7.3 inches and a perimeter of 53
Vesna [10]

Answer:

The area of the pentagon is 193.45 square inches.

Step-by-step explanation:

In order to solve this question we need to use the appropriate formula for the pentagon's area shown below:

area = (p*a)/2

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area = (53*7.3)/2 square inches

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4 years ago
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What is the solution to = n/4 -12.4?
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Answer:

I need the rest of the question

Step-by-step explanation:

Sorry I want to help you but I cant unless there is a (example): 12+-3= n/4 -12.4

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7 0
3 years ago
Find the value of x such that the data set has a mean of 103.<br><br> 99,122,103,113,109,x
Mashcka [7]
That means the average of all data point equal:

(99+122+103+113+109+x)/6 = 103
===> (546+x)/6 = 103===> 546+x=618 & x=618-546=72, so x =72
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Answer:

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Step-by-step explanation:

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