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
nydimaria [60]
2 years ago
5

PLEASE HELP!!! (Look at photo)

Mathematics
2 answers:
Makovka662 [10]2 years ago
7 0
This isn't a answer BUT I LOVE YOUR PFP ‼️‼️ just saying dzibabddsys
vazorg [7]2 years ago
5 0

Answer:

D

Step-by-step explanation:

40x + 80 > 200

40x (+ 80 - 80) > 200 - 80

40x > 120

40x/40 > 120/40

x > 3

The line needed to have an open circle (x is not greater than or equal to) and it needed to go towards the right on the number line.

You might be interested in
Angle b is three times the measure of angle a. Angle c is two times the measure of angle a. What are the measures of all the ang
rewona [7]

Answer:

30 60 90

Step-by-step explanation:

4 0
2 years ago
Moises is determining the solution to the system of equations that is show below. Equation representing line A: y = one-third x
FrozenT [24]

Answer:

the answer is B

Step-by-step explanation:

edge2020 just took the test

4 0
3 years ago
Read 2 more answers
What is 4 divided by 610
grandymaker [24]

Answer:

4/610=0.00655737704918

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
HELP ME PLZ ITS DUE SOON THX
Ad libitum [116K]

Answer:

1.1000

2.3/4

3.f(x)=1000(1/4)^X

Step-by-step explanation:

6 0
3 years ago
A public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. Kar
ch4aika [34]

Answer:

We conclude that the mean waiting time is less than 10 minutes.

Step-by-step explanation:

We are given that a public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes.

Karen took bus number 14 during peak hours on 18 different occasions. Her mean waiting time was 7.8 minutes with a standard deviation of 2.5 minutes.

Let \mu = <u><em>mean waiting time for bus number 14.</em></u>

So, Null Hypothesis, H_0 : \mu \geq 10 minutes      {means that the mean waiting time is more than or equal to 10 minutes}

Alternate Hypothesis, H_A : \mu < 10 minutes    {means that the mean waiting time is less than 10 minutes}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                       T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean waiting time = 7.8 minutes

             s = sample standard deviation = 2.5 minutes

             n = sample of different occasions = 18

So, <u><em>test statistics</em></u> =  \frac{7.8-10}{\frac{2.5}{\sqrt{18} } }  ~ t_1_7

                              =  -3.734

The value of t test statistics is -3.734.

Now, at 0.01 significance level the t table gives critical value of -2.567 for left-tailed test.

Since our test statistic is less than the critical value of t as -3.734 < -2.567, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that the mean waiting time is less than 10 minutes.

5 0
3 years ago
Other questions:
  • A certain pizza box holds a 14-inch diameter pizza. If the box is 2 inches high; what is its surface area?
    7·1 answer
  • Factor completely: 2a2 + a - 28
    12·1 answer
  • Priscilla can make 3 bracelets in 17 minutes. At this rate, how many bracelets can she make in 34 minutes
    5·1 answer
  • Descending order of 976504 ; 976450 ; 975604 ; 98504
    12·1 answer
  • pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pa
    6·2 answers
  • What is the slope of Y= x +5
    13·2 answers
  • Condense the expression into a<br> single logarithm and simplify.<br> log26 - log24
    15·1 answer
  • Two adjacent
    6·1 answer
  • Pleaseeee help asap !! i’ll mark brainliest
    7·1 answer
  • if the lesser of two consecutive even integers is seven more than half the greater, what are the two integers?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!