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Tasya [4]
2 years ago
5

Marcus gathered data on the average time it takes for students to get to school each morning. Of all the responses, 10 people sa

id 15 minutes, 18 people said 30 minutes, and 12 people said 25 minutes.
If the standard deviation of the population is 5.64 minutes, what is the 95% confidence interval for the population mean?
Mathematics
1 answer:
sveticcg [70]2 years ago
5 0

Answer:

24.75, 1.75

Step-by-step explanation:

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Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories. 1. if she eats 2 servings of granola, how many
Tatiana [17]
1. 700 calories
2. Half a serving
3.x=serving
350x=calories
5 0
3 years ago
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PLEASE HELP ANSWER THIS QUESTION I DON'T KNOW IT AT ALL
Lena [83]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

  1. Is y = 4x - 7 a linear function?
  2. Is y = 6x² - 1 a linear function?
  3. Is y = \frac{1}{2x} + 10 a linear function?

Step-by-step explanation:

  1. Yes it is - when you graph this equation, it results in a [straight] line, signalling that it is a linear function.
  2. No it's not - when you graph this equation, it results in a v- kinda shape on the graph. Linear functions are [straight] lines on a graph, and this line wasn't straight. In fact, this wasn't even a line.
  3. No it's not - when you graph this equation, it results in a bend at the origin. The line on the graph is not straight, so this is not a linear equation.

For the graphs -

  • The first one represents the linear function [y = 4x - 7]
  • The second one (that looks like an L) represents the last not linear function [y = \frac{1}{2x} + 10]
  • The third one (that looks like a V) represents the first not linear function [y = 6x² - 1]

I HOPE THIS HELPS!

6 0
2 years ago
Helpppppppppppppppppppppppppppppppp
Dafna1 [17]
Answer:
1/625

Explanation:
In case of multiplication of numbers with same base, we add the powers.
This means that:
a^x * a^y = a^(x+y)

Applying this to the given, we will find that:
(5^-1) * (5^-3) = 5^(-1-3)
                      = 5^-4
                     = 1/625

Hope this helps :)
4 0
3 years ago
Read 2 more answers
If x is a number that is 7 more than y, how do you express x as a function of y?
Tomtit [17]

Answer:

y = x - 7

Step-by-step explanation:

8 0
2 years ago
25 points!!!! HELP ANSWER!
Fantom [35]

Answer:

a) 1st and 2nd

b) 4th one

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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