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3 years ago

What relations does not represent an function?

Mathematics

2 answers:

aleksandrvk [35]3 years ago

8 0

The answer to the question would be c!

Grace [21]3 years ago

3 0

Answer:

C) {(3, 4), (3, 5)}

Step-by-step explanation:

We know that,

'Function is a relation in which every element of the domain is mapped to a unique element in the co-domain'.

So, we get that,

In the ordered pair (x,y), the if 'x' is mapped to two values say y and z, then for the relation to be a function, y must be equal to z.

So, according to the options, we see that,

In option C i.e. the relation {(3,4), (3.5)}, we have that, 3 does not have unique image i.e. it is mapped to 4 and 5 both.

Thus, this relation does not satisfy the definition of a function.

So, option C will not represent a function.

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If the ratio of the sides of two similar prisms is 3:5 and the volume of the first prism is 54, what is the volume of the second

Yuri [45]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array} \\\\
-----------------------------\\\\$

$\bf \cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\
-------------------------------\\\\
\cfrac{smaller}{larger}\qquad \cfrac{s^3}{s^3}=\cfrac{\textit{volume of smaller}}{\textit{volume of larger}}\implies \cfrac{3^3}{5^3}=\cfrac{54}{v}
\\\\\\
v=\cfrac{5^3\cdot 54}{3^3}$

3 0

3 years ago

to subtract 178-135 mentally, carmine adds 5 to each number. karen adds 2 to each number. will both methods work to find the cor

otez555 [7]

Answer:

Yes

Step-by-step explanation:

Since the same value, x, is being added to both numbers they are subtracting the answer won't be changed.

178-135=43

183-140=43

180-137=43

5 0

4 years ago

Read 2 more answers

If f(x)=x^2-9/x+3 is continuous at x=-3, find f(-3). A. 3 B. -3 C. -6 D. 6

melamori03 [73]

Answer:

x = 3

Step-by-step explanation:

x^2 - 9 = (x+3)(x-3)

[(x + 3)*(x -3] /x+3) = x-3

x - 3 = 0

x = 3

3 0

3 years ago

For the function below, state the x-coordinate of the x-intercept that is located to the left of the origin

Advocard [28]

Answer:

The x-coordinate of the x-intercept that is located to the left of the origin is equal to -1

Step-by-step explanation:

we have the function

$f(x)=4x^3-12x^2-x+15$

we know that

The x-intercepts are the values of x when the value of the function is equal to zero

using a graphing tool

The function has three x-intercepts

The x-intercepts are the points

(-1,0),(1.5,0) and (2,5,0)

see the attached figure

The x-intercept that is located to the left of the origin is the point (-1,0)

therefore

The x-coordinate of the x-intercept that is located to the left of the origin is equal to -1

5 0

4 years ago

Round 43,276 to the nearest 100

bezimeni [28]

Answer:

43,300

Step-by-step explanation:

Starting with 2 since its in the hundredths and going over one place to the tenths, we see 7 is greater than 5 so we make the 2 a 3 and replace everything after with 0's

43,300!!

4 0

3 years ago