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3 years ago

Which Iink between two elements could you remove from the relation so that becomes a function?

Mathematics

1 answer:

OLEGan [10]3 years ago

4 0

Answer:

Either (3,b) or (3,e) must be removed to form the above relation to be function.

Step-by-step explanation:

Given the relation between the elements of domain and range. we have to remove the link between two elements so that relation becomes a function.

A function is a relation in which each element in domain set maps into only one element of range set i.e one element can never have two images in range set.

Here, the element 3 in domain set maps into two element b and e in range set. Therefore, to form a function one link must be removed either

f(3)=b or f(3)=e

Hence, either (3,b) or (3,e) must be removed to form the above relation to be function.

Read more on Brainly.com - brainly.com/question/5314192#readmore

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Simplify: ( -16 - 8)/2 + 25 / 5 + 1

Alika [10]

-6

-24/2 + 25/5 + 1

-24/2+25/5+1

-12+25/5+1

-12 + 5 + 1

-7+1

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2 years ago

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Is 1/3 closest to -1 or 0?

Nata [24]

Answer:

1/3 is closer to 0 than it is closer to -1

Step-by-step explanation:

<------------------(-1)--0---(1/3)----------------->

As you can see here, 1/3 is closer to 0 than -1

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3 years ago

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I Need to find the Function Operations

Alinara [238K]

Answer:

1) $(f+g)(x)=2x^2+3x-6$

2) $(f-g)(x)=2x^2+x$

3) $(f \cdot g)(x)=2x^3-4x^2-9x+9$

Step-by-step explanation:

So we have the two functions:

$f(x)=2x^2+2x-3\text{ and } g(x)=x-3$

And we want to find (f+g)(x), (f-g)(x), and (f*g)(x).

(f+g)(x) is the same to f(x)+g(x). Substitute:

$(f+g)(x)=f(x)+g(x)\\=(2x^2+2x-3)+(x-3)$

Combine like terms:

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

Add:

$=2x^2+3x-6$

So:

$(f+g)(x)=2x^2+3x-6$

(f-g)(x) is the same to f(x)-g(x). So:

$(f-g)(x)=f(x)-g(x)\\=(2x^2+2x-3)-(x-3)$

Distribute:

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

Combine like terms:

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

Simplify:

$=2x^2+x$

So:

$(f-g)(x)=2x^2+x$

(f*g)(x) is the same to f(x)*g(x). Thus:

$(f\cdot g)(x)=f(x)\cdot g(x)\\=(2x^2+2x-3)(x-3)$

Distribute:

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

Distribute:

$=(2x^3+2x^2-3x)+(-6x^2-6x+9)$

Combine like terms:

$=(2x^3)+(2x^2-6x^2)+(-3x-6x)+(9)$

Simplify:

$=2x^3-4x^2-9x+9$

So:

$(f \cdot g)(x)=2x^3-4x^2-9x+9$

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3 years ago

To make dough, Reba needs 2 1/2 cups of flour. How much flour does she need to make 5 batches of dough?

aleksandr82 [10.1K]

Answer:

12 1/2 cups of flour

Step-by-step explanation:

2 1/2 cups for each batch

5 batches

2 1 /2 x 5 =

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do more kids say they want to see into the future or become invisible? invisible is 9/50 future is 1/5 what is more?

Olin [163]

So this question is asking whether 9/50 or 1/5 is more. To do this we need to make 1/5 have a denominator of 50. So, we multiply the numerator and the denominator by 10.

1/5 * 10/10 = 10/50

Because 9/50 is less than 10/50, more kids want to see in the future.

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3 years ago