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
Alex17521 [72]
3 years ago
8

1+3 Lol have a nice day

Mathematics
2 answers:
vichka [17]3 years ago
5 0
4 is the answer so easy
mestny [16]3 years ago
4 0

Answer: It's either 4 or 13

You might be interested in
A dieter believes that the average number of calories in a homemade peanut better cookie is more than the average number of calo
zalisa [80]

The confidence interval formula is computed by:

Xbar ± Z s/ sqrt (n)

Where:

Xbar is the mean

Z is the z value

S is the standard deviation

N is the number of samples

 

So our given are:

90% confidence interval with a z value of 1.645

Sample size 40, 45

Mean 180, 179

Standard deviation 2, 4

 

So plugging that information in the data will give us a confidence interval:

For 1:

Xbar ± Z s/ sqrt (n)

= 180 ± 1.645 (2 / sqrt (40))

= 180 ± 1.645 (0.316227766)

= 180 ± 0.520194675

= 179.48, 180.52

For 2:

Xbar ± Z s/ sqrt (n)

= 179 ± 1.645 (4 / sqrt (45))

<span>= 179 ± 1.645 (0.596284794)</span>

therefore, the answer is letter b

8 0
3 years ago
Perimeter of triangle:20
EleoNora [17]
What do you want me to do
4 0
3 years ago
Rotate the point (7,8) around the origin 90 degrees counterclockwise.
Juliette [100K]
The answer is (-8,7)

8 0
3 years ago
you buy 75 candy bars at a cost of $0.49 each what is the total cost of 75 candy bars? use mental math
avanturin [10]

It took me a second but its $36.75

7 0
3 years ago
Read 2 more answers
7.66. Buses from Dallas to Houston leave every hour on the hour. Buses from Houston to Dallas leave every hour on the half hour.
LUCKY_DIMON [66]
Tneeukjru lbd. gjfej
3 0
2 years ago
Read 2 more answers
Other questions:
  • Please guys help me out . Thanks
    7·1 answer
  • If p=8, evaluate 4^2 / px3
    14·1 answer
  • dentify the type of data​ (qualitative/quantitative) and the level of measurement for the native language of survey respondents.
    7·1 answer
  • Each marker weighs 10 g. There are 8 markers in a pack. How much do all the markers weigh?
    11·2 answers
  • What property is being illustrated below?<br> 2(7+3)=2(7)+2(3)
    11·1 answer
  • What is the volume of a cylinder if the radius is 3.2 centimeters and the height is 5 centimeters
    15·1 answer
  • Which expression equals a number that is NOT a rational number?
    12·1 answer
  • A local farm sells strawberries and blueberries. The ratio of the number of strawberries to blueberries it sells at 5:3. If it s
    14·1 answer
  • Tayla purchased a large box of comic books for $300. She gave 15 of the comic books to her brother and then sold the rest on an
    13·1 answer
  • Which is the graph of the equation ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!