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3 years ago

Which of the following relations represents a function?

Mathematics

2 answers:

3241004551 [841]3 years ago

8 0

Answer:

Choice D is correct answer.

Step-by-step explanation:

We have given relations .

We have to choose relations which are functions.

Function f from a set X to a set Y is defined by a set G of ordered pairs (x, y) such that x ∈ X, y ∈ Y.

Function is defined as a rule that assigns each input a single output.

So, choice B and C represent a function. But choice A is not a function since a single input can't have more than 1 output.

sdas [7]3 years ago

4 0

Answer:

Alternative D is correct

Step-by-step explanation:

For a relation to qualify as a function, a unique x value should be mapped to a unique y-value or unique x-values be mapped to the same y-value

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The relation between y = ideal weight (lbs) and x =actual weight, based on data from n = 119 women, resulted in the regression l

Elina [12.6K]

I believe you just plug 120 into x.
y = 44+0.6(120)
y = 116

Ideal weight is 116lbs

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4 years ago

A sauce recipe calls for a cup of chicken broth. To make enough sauce for a party, Marcy needs to triple the

tia_tia [17]

Answer:

She estimates that the tripled recipe will need

✔ less than 3

cups of chicken broth.

The exact amount of chicken broth needed is

✔ 9/4

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Step-by-step explanation:

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3 years ago

A strip mall in Dallas has store space in several different sizes. There are eight 300-square-foot stores, one 800-square-foot s

Vesna [10]

Answer:

Part 1: "What is the ratio of vacant space to occupied space?" $\frac{6}{35}$

Part 2: "What percent of the space is occupied?" 85.37%

Step-by-step explanation:

1st part:

Total square foot = (8*300) + (1*800) + (1*900) = 4100 sq. feet

Vacant Space = 2*300=600

Occupied Space = 4100 - 600 = 3500

Thus ratio of vacant space to occupied space = $\frac{600}{3500}=\frac{6}{35}$

2nd part:

To find % of occupied space, we need to divide occupied space (in sq ft.) by the total square feet and then multiply by 100 (since we want the percentage):

$\frac{3500}{4100}=0.8537=85.37$

Occupied space is 85.37%

7 0

4 years ago

A section of a boardwalk is made using 15 boards. Each board is 914914 inches wide. The total width of the section is 144 inches

xeze [42]

15 times 9.25 = 138.75 inches.
That leaves

144-138.75 = 5.25 inches for spaces.
Between the 15 boards are just 14 spaces, however.
So divide 5.25 by 14 and get
3/8" for each space.
Answer by Cromlix(4300) (Show Source):You can put this solution on YOUR website!
Hi there,
14 boards each 9 1/4 inches wide.
14 x 9 1/4 = 138 3/4 inches
144 inches - 138 3/4 inches

= 5 1/4 inches
Spaces between 14 boards
= 13 spaces.
5 1/4 / 13 = 2/5 of an inch.
Hope this helps. :-)

8 0

3 years ago

Read 2 more answers

What does b stand for 11.3 > b/4.3 (Please show explanation)

lilavasa [31]

$11.3 > \frac{b}{4.3} \\ = >11.3 \times 4.3 > b \\ = > 48.59 > b$

Answer:

b < 48.59

Hope you could understand .

If you have any query, feel free to ask and sorry for my previous answer.

3 0

2 years ago