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
Rus_ich [418]
2 years ago
9

I plz help meeeeeeeeeeee​

Mathematics
1 answer:
Feliz [49]2 years ago
5 0

Answer:

2 5 8

Step-by-step explanation:

2+5+8=15

im not sure if that's what its asking for. if it isn't im sorry

You might be interested in
The price of an item yesterday was $120. Today, the price fell to $78
marusya05 [52]

Answer:

The answer is decreasing the money

8 0
2 years ago
Read 2 more answers
• A researcher claims that less than 40% of U.S. cell phone owners use their phone for most of their online browsing. In a rando
antiseptic1488 [7]

Answer:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p > α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

Step-by-step explanation:

Set up hypotheses:

Null hypotheses = H₀: p = 0.40

Alternate hypotheses = H₁: p < 0.40

Determine the level of significance and Z-score:

Given level of significance = 1% = 0.01

Since it is a lower tailed test,

Z-score = -2.33 (lower tailed)

Determine type of test:

Since the alternate hypothesis states that less than 40% of U.S. cell phone owners use their phone for most of their online browsing, therefore we will use a lower tailed test.

Select the test statistic:  

Since the sample size is quite large (n > 30) therefore, we will use Z-distribution.

Set up decision rule:

Since it is a lower tailed test, using a Z statistic at a significance level of 1%

We Reject H₀ if Z < -1.645

We Reject H₀ if p ≤ α

Compute the test statistic:

$ Z =  \frac{\hat{p} - p}{ \sqrt{\frac{p(1-p)}{n} }}  $

$ Z =  \frac{0.31 - 0.40}{ \sqrt{\frac{0.40(1-0.40)}{100} }}  $

$ Z =  \frac{- 0.09}{ 0.048989 }  $

Z = - 1.84

From the z-table, the p-value corresponding to the test statistic -1.84 is

p = 0.03288

Conclusion:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p >  α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

8 0
3 years ago
One number is eight more than twice another. If their difference is 25, what is the larger number?
Vladimir79 [104]
You can set up an system of equations
x=2y+8
x-y=25

Substitute x in to the second equation
2y+8-y=25
y+8=25
y=17

Substitute the y back in to the first equation.
x=2(17)+8=42
7 0
3 years ago
Help please due soon
AfilCa [17]

Answer:

16

Step-by-step explanation:

D

5 0
3 years ago
A right rectangular prism is packed with cubes of side length 1/2 inch. If the prism is packed with 5 cubes along the length, 3
lesya [120]
The answer is C 11 1/4 or 11.25 Cubic inches
6 0
3 years ago
Other questions:
  • PLZ HELP WITH GEOMETRY!!!
    11·2 answers
  • Mandy is building a rectangular garden pond with the area of 12ft^2. The length of pool needs to be 2 ft more than twice the wid
    7·1 answer
  • On Oct. 15, 2003, Yang Liwei orbited the Earth 14 times in 21 hours for the country of China. How
    5·1 answer
  • The point (0, 2) is the only solution to the system of linear equations that contains the equations
    12·1 answer
  • In the figure angle G measures 102° and angle B measures 30° what is the measurement of angle B
    10·2 answers
  • I need help with this simplify problem​
    13·1 answer
  • 25 points America explain
    11·1 answer
  • (PLEASE HELP ME) picture is shown
    7·1 answer
  • What is the fifth term of the sequence 4/3, 8/3, 4, 16/3 ?
    13·2 answers
  • Write the fractions from least to greatest 2/3 3/4 5/6
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!