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
Zanzabum
3 years ago
9

Liberal Arts. The following graph represents the amount that Camila and Lydia charge for their babysitting services. Which of th

e following statements are true? Select all that apply.

Mathematics
2 answers:
exis [7]3 years ago
5 0
The answers are A., C., and E.
The chart shows that Camila has a greater rate of change than Lydia, so B is incorrect. C and E are true because the graph shows that Camila's rate of change is $7/hour, making C true, which means that in 2 hours, she gets paid $14, making E true.

Answers: A., C., and E.
Hope this helps! :)
musickatia [10]3 years ago
3 0

c and e correct  because is show that

You might be interested in
Willow has a board that is 10 feet long. She needs to cut the board into equal pieces that are 1/3 feet long.
Alex73 [517]

Answer:

12

Step-by-step explanation:

5 0
3 years ago
A bag of assorted candy contains 11 peppermints, 8 chocolates, 13 gumdrops, and 9 licorices. Amy randomly takes a gumdrop from t
Viktor [21]
22/39 since you took one piece out. Sorry if this rounds down more.
5 0
3 years ago
An equation of a line through (11, 12) which is perpendicular to the line y=3x+1 has slope: ____Blank____
Burka [1]

Answer:

the slope is 3 and 1 and the y intercept is 1 and 1

Step-by-step explanation:

5 0
3 years ago
Replace * with a number in such a way that the trinomial could be written in the form a(x+b)^2 or a(x-b)^2.
weqwewe [10]

Answer:

  • a) 6
  • b) 3.125 or 25/8

Step-by-step explanation:

a)

  • 1.5x² + 6x + * =
  • 1.5(x² + 4x + *) =
  • 1.5(x² + 2*2x + 4) =
  • 1.5(x + 2)²
  • * = 1.5*2² = 6

b)

  • 2x² - 5x + * =
  • 2(x² - 2.5x + *) =
  • 2(x² - 2*1.25x + 1.25²)=
  • 2(x - 1.25)²
  • * = 2*(1.25)² = 3.125  or 25/8
6 0
3 years ago
Read 2 more answers
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by th
butalik [34]

Answer:

a) A sample size of 5615 is needed.

b) 0.012

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}}

99.5% confidence level

So \alpha = 0.005, z is the value of Z that has a pvalue of 1 - \frac{0.005}{2} = 0.9975, so Z = 2.81.

(a) Past studies suggest that this proportion will be about 0.2. Find the sample size needed if the margin of the error of the confidence interval is to be about 0.015.

This is n for which M = 0.015.

We have that \pi = 0.2

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

0.015 = 2.81\sqrt{\frac{0.2*0.8}{n}}

0.015\sqrt{n} = 2.81\sqrt{0.2*0.8}

\sqrt{n} = \frac{2.81\sqrt{0.2*0.8}}{0.015}

(\sqrt{n})^{2} = (\frac{2.81\sqrt{0.2*0.8}}{0.015})^{2}

n = 5615

A sample size of 5615 is needed.

(b) Using the sample size above, when the sample is actually contacted, 12% of the sample say they are not satisfied. What is the margin of the error of the confidence interval?

Now \pi = 0.12, n = 5615.

We have to find M.

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

M = 2.81\sqrt{\frac{0.12*0.88}{5615}}

M = 0.012

7 0
3 years ago
Other questions:
  • CONNECT FRACTIONS TO DIVISION
    8·2 answers
  • The function h(x)= x^2+3 and g(x)= x^2-6. If g(x) = h(x) +k, what is the value of k
    14·2 answers
  • What is the measure of angle C
    9·2 answers
  • OMG PLEASE HELP DOG
    13·1 answer
  • Can anyone please help me? please?
    10·1 answer
  • Find the missing values of the variables. The diagram is not to scale.
    8·1 answer
  • Margaret is going on vacation to Alaska. She has 13 sweaters and needs to choose 6 to take with her on vacation. How many ways c
    9·1 answer
  • Is the sequence below increasing or decreasing?<br> 1/7, 2/7, 3/7, 4/7, 5/7.
    5·2 answers
  • Scott bought a 5lb bag of cookies at the bakery. He ate 2/5 of the bag and his sister ate 2/9 of the bag. What fraction of the b
    15·1 answer
  • PLEASE HELP ME WITH THIS!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!