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
slavikrds [6]
2 years ago
14

The mapping diagrams below show 4 different relationship between input and output values.

Mathematics
1 answer:
KatRina [158]2 years ago
8 0

Answer:

A. B and C are functions

Step-by-step explanation:

Given

See attachment for mapping diagrams

Required

Which represent function

For a mapping to be considered a function, each element of the input set must only point to 1 element of the output set.

Base on the above analysis, we have:

<u>Map A</u>

1 points to 6; 2 to 7; 3 to 8; and 4 to 9

<em>This is a function</em>

<u>Map B</u>

2 points to 0; 4 to 0; 6 to 0; and 8 to 0

<em>This is a function</em>

<u></u>

<u>Map C</u>

1 points to 8; 3 to 8; 5 to 9; and 7 to 9

<em>This is a function</em>

<u>Map D</u>

0 points to 2 and 5; 3 points 7 and 9

<em>This is not a function</em>

You might be interested in
PLEASE ANSWER ASAP
Hoochie [10]

First, let's ignore the answer choices and solve for a value of x ourselves.

2(8 - x) < 4

Distributive property.

16 - 2x < 4

Subtract 16 from both sides.

-2x < -12

Divide both sides by -2 (and flip the inequality sign)

x > 6

The value of x is going to be greater than 6, and so, we can observe the answer choices, and whichever value is greater than 6, is the correct answer.

<h3>In this case, there is only one answer, and that is D, x = 10.</h3>
3 0
3 years ago
Read 2 more answers
The number of "destination weddings" has skyrocketed in recent years. For example, many couples are opting to have their wedding
crimeas [40]

Answer:

Step-by-step explanation:

Mean = (29.7 + 29.4 + 31.7 + 29.0 + 29.1 + 30.5 + 29.1 + 29.8)/8 = 29.7875

Mean = 29.7875 × 1000 = $29787.5

Standard deviation = √(summation(x - mean)²/n

n = 8

Summation(x - mean)² = (29.7 - 29.7875)^2 + (29.4 - 29.7875)^2 + (31.7 - 29.7875)^2 + (29.0 - 29.7875)^2 + (29.1 - 29.7875)^2 + (30.5 - 29.7875)^2 + (29.1 - 29.7875)^2 + (29.8 - 29.7875)^2 = 5.88875

Standard deviation = √(5.88875/8

s = 0.88

s = 0.88 × 1000 = $880

a) We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

H0:µ ≤ 30000

For the alternative hypothesis,

H1:µ > 30000

This is a right tailed test.

b) The decision rule is to reject the null hypothesis if the significance level of 0.05 is greater than the probability value. If it is otherwise, we would fail to reject the null hypothesis.

c) Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 8

Degrees of freedom, df = n - 1 = 8 - 1 = 7

t = (x - µ)/(s/√n)

Where

x = sample mean = 29787.5

µ = population mean = 30000

s = samples standard deviation = 880

t = (29787.5 - 30000)/(880/√8) = - 0.68

We would determine the p value using the t test calculator. It becomes

p = 0.26

d) Since alpha, 0.1 < the p value, 0.26, then we would fail to reject the null hypothesis.

6 0
3 years ago
The next day, Kiran read for x minutes, and Andre read for 1/10 less than that. Write an equation that relates the number of min
zzz [600]

Answer:

y - 1/10 = x

Step-by-step explanation:

y = # minutes read Kiran

x = # minutes read Andre

8 0
2 years ago
If x° and 54° form a linear pair find x°​
elixir [45]

Answer:

x = 126°

Step-by-step explanation:

x + 54 = 180°

x + 54 - 54 = 180 - 54

x = 126°

6 0
3 years ago
Read 2 more answers
Is -13.1 + (-19) rational or irrational
ELEN [110]

Answer:

rational

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Find the measure of each acute angle in a right triangle where the measure of one acute angle is 3 times the sum of the measure
    7·1 answer
  • The water level at Lake Willow was -14 feet. After 3 days of rain, the water level rose by 23 feet. What is the water level afte
    12·1 answer
  • Mike needs $1551 each month for bills
    8·1 answer
  • On the following equation: y = -7/3 + 4. Which one is the slope? *
    7·1 answer
  • Please help me it would make my day​
    13·2 answers
  • 5 is one-fourth of a number c.
    13·2 answers
  • Khan Academy
    13·1 answer
  • The formula 
    14·1 answer
  • Please can you help me, I had to put this question up here twice
    13·1 answer
  • What is the rate of Change in y=8x - 4
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!