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
allochka39001 [22]
3 years ago
9

HELP ME The question in in the picture

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Babysitting earns $10.50 an hour (21 / 2).

Mowing earns $18 and hour (sub 1 in for each variable).

18 > 10.5

C is the only answer that lines up with logic and those two conclusions.

You might be interested in
Which represents slant asymptotes? select all that applies <br> I'll choose the brainliest
Stella [2.4K]

Its the first, third, and fourth option. Im doing the hw now:)!

8 0
3 years ago
Courtney walks 4 laps around 1/4 mile back. 1 mile is 5280 feet, how far did she walk
Alika [10]

Answer:

5280 feet

Step-by-step explanation:

one loop is 1 fourth of a mile

she walked 4 times, making it a full mile.

So, she walked 5,280 feet in total

8 0
3 years ago
How do you do number 9?
Ket [755]
I think you just add all the sides even the ones you don't see. The left side of the shape is 6m as well as the right. and the same with the 4s. The answer is 36.
3 0
3 years ago
Read 2 more answers
A theory predicts that the mean age of stars within a particular type of star cluster is 3.3 billion years, with a standard devi
Luden [163]

Answer:

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

Since is a one right tailed test the p value would be:  

p_v =P(z>1.768)=0.039  

Step-by-step explanation:

Data given and notation

\bar X=3.4 represent the sample mean  

\sigma=0.4 represent the population deviation for the sample

n=50 sample size  

\mu_o =3.3 represent the value that we want to test  

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses to be tested  

We need to conduct a hypothesis in order to determine if the mean is higher than 3.3, the system of hypothesis would be:  

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

Compute the test statistic  

We know the population deviation, so for this case is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

We can replace in formula (1) the info given like this:  

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

P value

Since is a one right tailed test the p value would be:  

p_v =P(z>1.768)=0.039  

6 0
3 years ago
The data set represents the total number of tickets each person purchased for a play.
navik [9.2K]
The median is 1.5, hope this was helpful :)
4 0
2 years ago
Read 2 more answers
Other questions:
  • I have the worst teacher and I need help can anyone help me :(?
    10·1 answer
  • The length of the boston marathon is 138,435 ft. each stride, or step, by a particular runner is 3ft. long. does the number of s
    13·2 answers
  • the shelf life of fresh bread has a mean of 6 days with a standard deviation of 1/2 of a day. what percent of loaves at the bake
    15·1 answer
  • Anna can do a job in 4 days. After she has worked for 1 day, she is joined by Sylvia, and it takes them 2 days working together
    5·1 answer
  • A sum of 17 and a difference 1
    15·2 answers
  • A number added to itself twelve times is five more than twice the number. What is the number?
    7·1 answer
  • Raju's father is 26 years younger than raju's grandfather and 29 years older than raju. The sum of the ages of all the three is
    8·1 answer
  • It took 5 builders 3 and a half hours to build a wall
    12·2 answers
  • Which of the following is not possible?
    10·2 answers
  • Find the distance from point B to point C.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!