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
rosijanka [135]
2 years ago
10

Determine which relation is a function.

Mathematics
2 answers:
Shkiper50 [21]2 years ago
7 0

Answer:

D

Step-by-step explanation:

D is the only option that does not have repeated x-values.

Olenka [21]2 years ago
4 0

Answer:

The fourth line is a function.

Step-by-step explanation:

You might be interested in
What is the shape of the cross-section formed when a cylinder intersects a plane as shown in the drawing?
elena55 [62]

Answer:

There is no drawing we will not be able to answer your question.

Step-by-step explanation:


8 0
3 years ago
There are some goats, cows, and sheep on a farm. 2/5 of the animals were goats. There are 3 times as many sheep as cows. If ther
svetlana [45]

Answer:

180

Step-by-step explanation:

First thing to do is to get all the animals in terms of cows, since that is our main unknown.  All the other animals' numbers are based on cows.  So let's call cows "x".  Then sheep is 3 times the number of cows, so sheep is 3x.  The number of goats is 45 more than the number of cows, so goats is x + 45.  Let's say, for the sake of ease, that the number of animals is "a".

Here's what we have so far:

# of animals: a

# of cows: x

# of sheep: 3x

# of goats: x + 45

We are told that 2/5 of the animals are goats.  In an equation, that is:

2/5 (animals) = goats, where the word "of" means to multiply, and the word "are" is the equals sign.  Filling in from our key above:

\frac{2}{5}a=x+45

That says that 2/5 of the animals are goats when goats is x + 45.

If 2/5 of the animals are goats, then 3/5 of the animals have to be cows and sheep.  In an algebraic equation:

\frac{3}{5}a=x + 3x.  

Let's go back to the first equation and get rid of the fraction by multiplying everything by 5.  When we do that we get

2a = 5(x + 45) so

2a = 5x + 225

Now let's get rid of the fraction in the second equation by multiplying everything by 5.  When we do that we get

3a = 5(x + 3x) or

3a = 5(4x) so

3a = 20x.  Solve that equation for a.

a=\frac{20}{3}x

Now that we have a in terms of x, we can sub that value in for a in the first equation to solve for x, the number of cows:

2(\frac{20}{3}x)=5x+225 and, simplifying:

\frac{40}{3}x=5x+225 and

\frac{40}{3}x-5x=225.  Get rid of the fraction here by multiplying everything by 3:

40x - 15x = 675 and

25x = 675 so

x = 27

That means that there are 27 cows.

Sheep is 3 times that, so there are 81 sheep.

Goats is 45 more than that, so there are 72 goats.

The total number of animals then is 27 + 81 + 72 which is 180.  Let's check that to see if the number of goats, 72, is 2/5 of 180.

\frac{2}{5}(180) = 72

So we got it!  Yay!  That was hard!!

7 0
3 years ago
There are 2 Rectangles, a red one and a blue one.The Blue rectangle has the perimeter of 250 km. If the area of the red rectangl
kap26 [50]

Answer:a

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPP
Nookie1986 [14]
162 - 9 = 153. 
d = 153.
Diego is old.
3 0
3 years ago
Read 2 more answers
Daniel spent 3 hours babysitting for his brother. He and the children played games for 1 3/4 hours and watched television for 1/
____ [38]

Answer:

He spent 3/4 of an hour reading stories

Step-by-step explanation:

Sorry I dont have time :(

8 0
2 years ago
Other questions:
  • Which decimal represents the fraction of candles in this group that have flames
    11·1 answer
  • In triangle DEF , DF = 16 and angle F = 45. Find the length of a leg. Leave your answer is radical form.
    13·1 answer
  • A blimp is held in place with two ropes.
    14·1 answer
  • Which situation can be represented by this equation?<br> 1/2x + 20 = 32
    10·1 answer
  • Is the inverse of the function shown below also a function?
    15·1 answer
  • If you were to describe a reflection of triangle ABC, what information would you need to include in your description?
    8·1 answer
  • Please help me find this one! I'm in highschool
    6·1 answer
  • Please hurry due today
    11·1 answer
  • Eli and molly are creating patterns Eli uses add 2 and starts at 1
    8·1 answer
  • this afternoon dan left school, rode the bus 11/12 of a mile, and then walked 1/3 of a mile to get home. how much farther did da
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!