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LuckyWell [14K]
2 years ago
7

Please help meeeeeeee

Mathematics
1 answer:
slavikrds [6]2 years ago
7 0
D no Solution would be the answer
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6 Which expression is equivalent to 8(4 + x)?
svetoff [14.1K]
8 times 4 and 8 times x
so 32 + 8x
6 0
1 year ago
Read 2 more answers
I’m confused on this one
Digiron [165]

first, you would find the sum of all the other angles.

85+115+50 = 250

knowing that the circumference of a circle is 360, you can subtract 250 from 360. which leaves you with 110. hopefully this is correct

8 0
2 years ago
PLEASE I ONLY HAVE 30 MIUNUTES TO FINISH!!!!!!!!!!!!!
creativ13 [48]

Answer:

When it is small & when the sample has things that are different from the population.

Step-by-step explanation:

A small sample has less chance of accurately reflecting a population & too many variables can also negatively influence the study.

3 0
2 years ago
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What is 6.493 rounded to 6
____ [38]
The answer is 6
Brainly
8 0
2 years ago
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A random sample of 49 statistics examinations was taken. the average score, in the sample, was 84 with a variance of 12.25. the
tester [92]

Since in this case we are only using the variance of the sample and not the variance of the real population, therefore we use the t statistic. The formula for the confidence interval is:

<span>CI = X ± t * s / sqrt(n)                      ---> 1</span>

Where,

X = the sample mean = 84

t = the t score which is obtained in the standard distribution tables at 95% confidence level

s = sample variance = 12.25

n = number of samples = 49

From the table at 95% confidence interval and degrees of freedom of 48 (DOF = n -1), the value of t is around:

t = 1.68

 

Therefore substituting the given values to equation 1:

CI = 84 ± 1.68 * 12.25 / sqrt(49)

CI = 84 ± 2.94

CI = 81.06, 86.94

 

<span>Therefore at 95% confidence level, the scores is from 81 to 87.</span>

6 0
3 years ago
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