1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solong [7]
3 years ago
13

I need help on this.. First person to answer this correctly gets a BRANLIST​

Mathematics
1 answer:
arlik [135]3 years ago
7 0

Answer: The relation is a function.

Step-by-step explanation: Since there is one value of y for every value of x in (-2,4), (3,7), (0,8), (5,8), and (1,6), this relation is a function.

I hope this helps you out!

You might be interested in
Determine whether each of these sets is finite, countably infinite, or uncountable. For those that are countably infinite, exhib
anzhelika [568]

Answer:

a) Countably infinite

b) Countably infinite

c) Finite

d) Uncountable

e) Countably infinite

Step-by-step explanation:

a) Let S the set of integers grater than 10.

Consider the following correspondence:

f: S\rightarrow \mathbb{Z}^+ defined by f(10+k)=k-1 for k\in\mathbb{Z}^+/\{0\}.

Let's see that the function is one-to-one.

Suppose that f(10+k)=f(10+j) for k≠j. Then k-1=j-1. Thus k-j=1-1=0. Then k=j. This implies that 10+k=10+j. Then the correspondence is injective.

b) Let S the set of odd negative integers

Consider the following correspondence:

f: S\rightarrow \mathbb{Z}^+ defined by f(-(2k+1))=k.

Let's see that the function is one-to-one.

Suppose that f(-(2k+1))=f(-(2j+1)) for k≠j. By definition, k=j. This implies that the correspondence is injective.

c) The integers with absolute value less than 1,000,000 are in the intervals A=(-1.000.000, 0) B=[0, 1.000.000). Then there is 998.000 integers in A that satisfies the condition and 999.000 integers in B that satifies the condition.

d) The set of real number between 0 and 2 is the interval (0,2) and you can prove that the interval (0,2) is equipotent to the reals. Then the set is uncountable.

e) Let S the set A×Z+ where A={2,3}

Consider the following correspondence:

f: S\rightarrow \mathbb{Z}^+ defined by f(2,k)=2k, \;f(3,j)= 2j+1

Let's see that the function is one-to-one.

Consider three cases:

1. f(2,k)=f(2,j), then 2k=2j, thus k=j.

2. f(3,k)=f(3,j), then 2k+1=2j+1, then 2k=2j, thus k=j.

3.  f(2,k)=f(3,j), then 2k=2j+1. But this is impossible because 2k is an even number and 2j+1 is an odd number.

Then we conclude that the correspondence is one-to-one.

6 0
3 years ago
A bag has 5 blue marbles, 1 pink marble and 2 red marbles. I draw a blue marble, put it back and draw again. What is the probabi
AysviL [449]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
So like please help me because i’m confused???<br><br> answer all of them please :)
tensa zangetsu [6.8K]

Answer:

domain is infinity to - infinity

range is 4 to - infinity

zeros is -2,2

vertex is 4

min is infinity max is 4

aixs is 4

y- is (0,4)

7 0
2 years ago
Sara can type 90 words in 8 minutes at this rate how many words should she have typed in 28 minutes
ella [17]

Answer:

315

Step-by-step explanation:

i divided 90 by 9 to know how much she can type in one minute and timed it by 28 to know how much she can type in 28 minutes 90÷8×28 = 315

8 0
2 years ago
Solve 60=10\sqrt y-3
Readme [11.4K]
\bf 60=10\sqrt{y-3}\implies \cfrac{60}{10}=\sqrt{y-3}\implies 6=\sqrt{y-3}&#10;\\\\\\&#10;\textit{now, we simply raise both at }^2&#10;\\\\\\&#10;(6)^2=(\sqrt{y-3})^2\implies 36=y-3\implies 36+3=y\implies 39=y
5 0
3 years ago
Other questions:
  • How much would you pay for 115 minutes?
    9·1 answer
  • The length of a rectangle is given by L=3y + 4x while the width is
    5·1 answer
  • In 2014, Chile experienced an intense earthquake with a magnitude of 8.2 on the Richter scale. In 2010, Haiti also experienced a
    11·1 answer
  • Cole drew a rectangle that is 3 meters by 10 meters. It has an area of 30 square meters and a perimeter of 26 meters. Which rect
    5·2 answers
  • 20 points help !!!!!! Please !!
    14·2 answers
  • At 7 pm, a burning candle is 16 inches tall. At 9:30 pm, the candle is only 3.5 inches tall. What is the UNIT RATE of the number
    15·2 answers
  • One cause of major climate changes is the position of Earth relative to the _________________.
    5·1 answer
  • Which ordered pair is a solution of the equation ?
    14·1 answer
  • Can you help please?
    11·1 answer
  • can anyone help me and show work for this Find the length of the third side. If necessary, write in simplest radical form.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!