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ElenaW [278]
3 years ago
10

Find the distance between points A and B.

Mathematics
2 answers:
VikaD [51]3 years ago
7 0

Answer:

8 units

Step-by-step explanation:

you can just count the boxes and you get the answer.

lawyer [7]3 years ago
6 0
8 units, you count the squares in between
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1. A sample consists of 75 TV sets purchased several years ago. The replacement times of those TV sets have a mean of 8.2 years.
Greeley [361]

Answer:

8.2+/-0.25

= ( 7.95, 8.45) years

the 95% confidence interval (a,b) = (7.95, 8.45) years

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 8.2 years

Standard deviation r = 1.1 years

Number of samples n = 75

Confidence interval = 95%

z value(at 95% confidence) = 1.96

Substituting the values we have;

8.2+/-1.96(1.1/√75)

8.2+/-1.96(0.127017059221)

8.2+/-0.248953436074

8.2+/-0.25

= ( 7.95, 8.45)

Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years

3 0
2 years ago
Find the zeros (x-3)(x+5)=0
maxonik [38]
The product is equal zero if one of the factors is equal zero.Therefore:
(x-3)(x+5)=0\iff x-3=0\ \vee\ x+5=0\\\\\boxed{x=3\ \vee\ x=-5}

3 0
3 years ago
WILL GIVE BRAINLIEST ANSWER THIS PLZ!
Nutka1998 [239]
The answer is b, tell me if you don't understand.
8 0
3 years ago
Read 2 more answers
Please help with a math problem must show work.
Burka [1]

Answer:

B

Step-by-step explanation:

you watch you Tube

5 0
2 years ago
Read 2 more answers
How can I solve this problem?
goldfiish [28.3K]
It's probably 8 actually. Because you measure the AC and the CB and just subtract.
5 0
3 years ago
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