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4 years ago

How do i know when a set of ordered pairs that represents a function?

Mathematics

1 answer:

pav-90 [236]4 years ago

5 0

Answer:

How do you figure out if a relation is a function? You could set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!

Step-by-step explanation:

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Plz someone help me.

satela [25.4K]

Hope this helps you! (and I'm right LOL)

5 0

3 years ago

What is the average speed in kilometers per hour if you travel 194 kilometers in 4.1 hours?

Sedaia [141]

Answer:

47.32 kilometers per hour

Step-by-step explanation:

194 (kilometers) / 4.1 ( hours)

194/4.1 = 47.32 kilometers per hour.

5 0

3 years ago

Read 2 more answers

Anthony has been saving nickels dimes quarters over the last year he knows that he has twice as many nickels as quarters. change

OLga [1]

Answer:

The number of nickel's coin is 150

The number of dime's coin is 35

The number of quarter's coin is 75

Step-by-step explanation:

Let

x ----> the number of nickel's coin

y ---> the number of dime's coin

z ---> the number of quarter's coin

Remember that

$1\ nickel=\$0.05$

$1\ dime=\$0.10$

$1\ quarter=\$0.25$

we know that

$x+y+z=260$ ----> equation A

$0.05x+0.10y+0.25z=29.75$ ----> equation B

$x=2z$ ----> equation C

substitute equation C in equation A and equation B

$2z+y+z=260$

$3z+y=260$ ---> equation A1

$0.05(2z)+0.10y+0.25z=29.75$

$0.35z+0.10y=29.75$ -----> equation B1

Solve the system of equations A1 and B1 by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (75,35)

see the attached figure

z=75, y=35

<em>Find the value of x</em>

$x=2(75)=150$

therefore

The number of nickel's coin is 150

The number of dime's coin is 35

The number of quarter's coin is 75

8 0

3 years ago

The rectangle has an area….

Anon25 [30]

Answer:

5.5193237 times 10 to the power of -10

Step-by-step explanation:

To solve you just need to divided the area by the length or width the question has provided. Please note I am in 7th grade.

4 0

3 years ago

URGENT! PLS ANSWER QUICK!!!!!!!!

skad [1K]

Since the lines have the same slopes, hence they are parallel lines

<h3>How to determine the relationship between lines</h3>

We can determine the relations by knowing the slopes of the line

For the line with coordinates (9, –5) and (5, –2)

Slope = -2+5/5-9
Slope = -3/4

For the line with coordinates (–4, –2) and (–8, 1)

Slope = 1+2/-8+4
Slope = -3/4

Since the lines have the same slopes, hence they are parallel lines

Learn more on parallel lines here: brainly.com/question/16742265

#SPJ1

7 0

2 years ago