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
Molodets [167]
3 years ago
11

Which of the following sets of ordered pairs represents a function

Mathematics
1 answer:
IgorC [24]3 years ago
3 0

Answer:

D is the correct answer.

Step-by-step explanation:

When given points, one way to tell if it is a function is to see if the x-coordinate changes.  If all the x-coordinates are different, then it is a function.  If there is a group of x-coordinates that are the same, then you need to check the y-coordinate.  If the y-coordinate is the same with the same x-coordinate, then it is still a function [Example: (12, 15), (12, 15) is a function, but (12, 15), (12, 18) is not)

You might be interested in
Negative six times a number, increased by 17, is – 19.<br> Write an equation
Zolol [24]

Answer:

( - 6 \times x) + 17 =  - 19

3 0
3 years ago
13<br> Use the circle below for<br> questions 13-16.
Natasha_Volkova [10]

Answer:

NK=12

Step-by-step explanation:

x^2 +9^2=15^2

x^2+81=225

subtract 81

x^2=144

x=12

(This is only for number 13, I don't know the answer to 14-16)

3 0
2 years ago
Help meeeeeeeeeeeeeeee
Roman55 [17]

Answer:

a

Step-by-step explanation:

I already answered this, but I guess it didn't go through

4 0
3 years ago
Read 2 more answers
Find the mid point of points A (-8, -8) and B (-1, -3) graphically<br><br> its deltamath
Misha Larkins [42]

-4.5,-5.5

Step-by-step explanation:

-8-1/2 , -8-3/2

=-4.5 , -5.5 (midpoint)

7 0
2 years ago
An automobile manufacturer would like to know what proportion of its customers are not satisfied by the service provided by the
zheka24 [161]

Answer:

The sample size needed if the margin of error of the confidence interval is to be about 0.04 is 18.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Past studies suggest this proportion will be about 0.15

This means that p = 0.15

Find the sample size needed if the margin of error of the confidence interval is to be about 0.04

This is n when M = 0.04. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 1.96\sqrt{\frac{0.15*0.85}{n}}

0.04\sqrt{n} = 1.96\sqrt{0.15*0.85}

\sqrt{n} = \frac{1.96\sqrt{0.15*0.85}}{0.04}

(\sqrt{n})^{2} = (\frac{1.96\sqrt{0.15*0.85}}{0.04})^{2}

n = 17.5

Rounding up

The sample size needed if the margin of error of the confidence interval is to be about 0.04 is 18.

8 0
3 years ago
Other questions:
  • Solve for x.<br><br> x^3=8/125<br><br> Enter your answer in the box as a fraction in simplest form.
    9·1 answer
  • Which best describes the function on the graph?
    13·1 answer
  • Estimate 1 7/8 - 1 1/2
    11·1 answer
  • The theoretical probability of an event occurring is 2/5 Which best describes the experimental probability associated with this
    13·2 answers
  • Katalin drove 180 miles on her vacation. She drove an average of 1.5 times faster on the second 90 miles of her trip than she di
    9·2 answers
  • Why is it so hard to please these teachers:(
    8·2 answers
  • Fractions equivalent to - 9/16
    10·1 answer
  • Which of the following represents DEPENDENT events?
    5·1 answer
  • Simplify this expression: -2x + 3 – (5 – 6x). Can someone pls explain how to do this dont just give the awnser
    9·1 answer
  • I can’t figure this out. Help!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!