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o-na [289]
3 years ago
15

I don’t understand plz help

Mathematics
1 answer:
Savatey [412]3 years ago
3 0
Post ? in a coment then ill answer
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Pls help 50 points and brainliest
daser333 [38]

Answer:

variable equation = 9h = 72

regular equation= 72/9=8

8 slices per pizza

Step-by-step explanation:

8 0
1 year ago
Read 2 more answers
A 11-inch board is cut into 6 equal length pieces. How long is each piece?
Dennis_Churaev [7]

Answer:

1.8inches or 1.83in repeating.

Step-by-step explanation:

divide 11 by 6. you get the decimal 1.83333333. you can either round to 1.8 or do 1.83 with a repeating symbol over the three (small dash above the number).      

4 0
2 years ago
Researchers are concerned about the impact of students working while they are enrolled in classes, and they’d like to know if st
antoniya [11.8K]

Answer:

The 95% confidence interval based on this sample is =

[6.41, 7.79]

Step-by-step explanation:

The formula for Confidence Interval =

Mean ± z × standard deviation/√n

Sample mean = 7.1 hours

Standard deviation = 5 hours

n = 200 students

z = 95% confidence interval z score

= 1.96

C.I = 7.1 ± 1.96 × 5/√200

C.I = 7.1 ± 0.693

Hence, Confidence Interval

= 7.1 - 0.693

= 6.407

Approximately = 6.41

= 7.1 + 0.693

= 7.793

Approximately = 7.79

Therefore, the 95% confidence interval based on this sample is

[6.41, 7.79]

6 0
2 years ago
Shawna is practicing typing. She types 456 words in 10 minutes.If she types the same number of words each minute how many words
Svetradugi [14.3K]

Answer:

456 / 10 = <u>45.6</u>

So the answer lies between <u>45</u> and <u>46</u>.

6 0
3 years ago
Read 2 more answers
I need help please.
enot [183]

Answer:

The answer is D. 2

Step-by-step explanation:

exponential form

exponents equal

move constant to the right

subtract the number

divide both sides by 2

6 0
3 years ago
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