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Over [174]
3 years ago
10

A 90% confidence interval is found to be (72,78) what is the margin of error

Mathematics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

3

Step-by-step explanation:

i just took the quiz on a p e x!

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Select the correct answer.
nydimaria [60]

Answer:

It is CD

Step-by-step explanation:

because 300+200=500, juts times it by 3 and divide

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2 years ago
Four students are determining the probability of flipping a coin and it landing head's up. Each flips a coin the number of times
Oxana [17]

Answer:

Collin

Step-by-step explanation:

He did the most attempts.

The probability of flipping a coin is 1/2

7 0
3 years ago
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Please help I will give brainiest to the right answer!!!!!!!! Please Help!!! ASAP!!!!
Dafna11 [192]

Answer:

arithmetic

Step-by-step explanation:

an arithmetic sequence is a sequence that moves up or down at a constant rate and the constant is 3

7 0
2 years ago
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PLEASE HELP ME!
marshall27 [118]

---------------------

given:

 = cost of Brazilian coffee in mixture

 = cost of Venezuelan coffee in mixture

 = cost of mixture

---------------------

Now I can rite these equations:

(1) 

(2) 

Multiply both sides of (2) by  and

subtract from (1)

(1) 

(2) 

and, since

288 kg of Brazilian coffee and 96 kg of Venezuelan coffee are needed

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Ctext%7BSolve%20for%20x%3A%7D%5C%5C%5C%5C3x%20%2B%2054%20%3D%20180" id="TexFormula1" title="
vagabundo [1.1K]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

x = 42

»»————- ★ ————-««  

Here’s why:  

  • We will use inverse operations to solve for 'x'.

⸻⸻⸻⸻

\boxed{\text{Calculating the Answer....}}\\\\3x+54=180\\----------\\\rightarrow 3x + 54 - 54 = 180-54\\\\\rightarrow 3x = 126\\\\\rightarrow\frac{3x=126}{3}\\\\\rightarrow\boxed{x=42}

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

3 0
2 years ago
Read 2 more answers
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