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
astraxan [27]
3 years ago
6

Which represents a function?

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

Answer:

B should be.

Step-by-step explanation:

all options, other than B have two values in set B(y) for at least 1 value of x

hence they are not functions, as a function contains unique image of x

You might be interested in
Nick bought t candies and divided them equally between his y friends and me. Each of us got 7 candies.
inysia [295]
<h2>Hello!</h2><h2>Let me help you.</h2>

As I understand, you need to write an equation that relates t \ and \ y. This problem will be solved using equations. The problem states:

<em>Nick bought t candies and divided them equally between his y friends and me. Each of us got 7 candies.</em>

<em />

From this statement, we know that:

t: Number of candies Nick bought.

y: Number of friends.

Since I am included in this problem, the number of people involved here can be expressed as:

y+1

Since each of us got 7 candies, then it is true that:

\frac{t}{y+1}=7 \\ \\ t=7(y+1)

<em>So t (number of candies) is a function of y(number of friends).</em>

6 0
2 years ago
Jules has 1200 and is spending 40 per week. kelsey has 400 and is saving 50 a week. in how many weeks, will jules and kelsey hav
expeople1 [14]
After x weeks:
Jules will have: 1,200 + 40 x.
Kelsey will have: 400 + 50 x.
If we want to know in how many weeks will they have the same amount of money, we will make an equation:
400 + 50 x = 1,200 + 40 x
50 x - 40 x = 1,200 - 400
10 x = 800
x = 800 : 10
x = 80
Answer: In 80 weeks they will have the same amount of money.
4 0
3 years ago
Please answer this question correctly for 24 points and brainliest!!
amm1812

Answer:

  $110

Step-by-step explanation:

Let a, b, and c represent the earnings of Alan, Bob, and Charles. The problem statement tells us ...

  a + b + c = 480 . . . . . . the combined total of their earnings

  -a + b = 40 . . . . . . . . . . Bob earned 40 more than Alan

  2a - c = 0 . . . . . . . . . . . Charles earned twice as much as Alan

Adding the first and third equations, we get ...

  (a + b + c) + (2a - c) = (480) + (0)

  3a + b = 480

Subtracting the second equation gives ...

  (3a +b) - (-a +b) = (480) -(40)

  4a = 440 . . . . . . . . simplify

  a = 110 . . . . . . . . . . divide by the coefficient of a

Alan earned $110.

_____

<em>Check</em>

Bob earned $40 more, so $150. Charles earned twice as much, so $220.

The total is then $110 +150 +220 = $480 . . . . as required

8 0
3 years ago
Choose the correct simplification of the expression 4 times b all over a to the power of negative 10.
yKpoI14uk [10]
<span><span>an</span>=<span>1<span>a−</span></span></span><span>4a10b</span>n hope i helped
5 0
3 years ago
What is the value of x and what is angle b?
SashulF [63]

Answer:

x=6

B = 20

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

55+ 3x+2 = 13x-3

Combine like terms

57+3x = 13x -3

Subtract 3x from each side

57+3x-3x = 13x-3x-3

57 = 10x-3

Add 3 to each side

57+3 = 10x-3+3

60 = 10x

Divide each side by 10

60/10 = 10x/10

6 =x

We also want angle B

B = 3x+2

   3*6+2

   18+2

   20

6 0
3 years ago
Other questions:
  • matt has 3 cherry pies and 2 apple pies. He wants to share each type of pie equally among four families.How much of each pie wil
    13·1 answer
  • The base of a rectangle measures 8 feet and the altitude measures 5 feet. Find to the nearest degree, the measure of the angle t
    8·1 answer
  • Richard has $1,089.26 in his checking account at the end of the month. During the month, he withdrew $120, deposited a check for
    6·1 answer
  • Solve for x.
    8·1 answer
  • A submarine started 20 feet below sea level. It is now 10 feet below sea level. Which integer represents its change in depth?
    5·2 answers
  • N +-6 = 11<br> Please answer!
    7·2 answers
  • A hiker begins at sea level and descends 25 feet every minute. How long will it take to get to an elevation of -750 feet?
    15·2 answers
  • What is the length of the hypotenuse of a right triangle with legs that are 7 and 8 inches
    11·2 answers
  • Helpp i dont want to fail math
    7·1 answer
  • Giving Brainiest ~~ :)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!