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Gwar [14]
2 years ago
6

Peter was told by his teacher that he needed to measure the height of the building in which his classroom was located. He backs

away from the building and places a mirror an the ground between him and the wall When he can see the top of the building in the mirror, Peter is 2 feet 9 inches away from the mirror and the mirror is 11 feet away from the wall of the building. Peter knew his eye level was exactly 5 ft 6 inches off of the ground, so he was able to calculate the height of the building. How tall is the building in feet?
Mathematics
1 answer:
Fed [463]2 years ago
5 0

Answer:

<h2>IT'S 22 JUST FOUND OUT </h2>

Step-by-step explanation:

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You successfully completed statistics, and the Math Department Chair recruited you to be a tutor. It’s day one on the job, and y
zvonat [6]

Answer:

Step-by-step explanation:

Ok, so we have to help your pupil (lets call her Jane) figure out "why researchers should use a random sample to conduct a survey". So, i will list all of the choices.

  • A random sample is likely to avoid bias
  • In a random sample some members of the population are more likely to be selected than others
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  • Random sampling will provide a more representative sample of population
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Random sampling is used to get the best average, and not favor any one opinion. For example, if you were trying to figure out the daily spending budget of people, you wouldn't just go to the upper clas part with all the rich people, you would survey from all over the town to get results from all kinds of people. So, the answers are:

  • A random sample is likely to avoid bias (because thats exactly what they do)
  • Random sampling will provide a more representative sample of population (because they are designed to do that)
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Hope this helps

4 0
3 years ago
Guys i need ypur help pls help me​
Phoenix [80]

Answer:

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5 0
3 years ago
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A notebook cost $1.50 and a binder cost $6.50 jesica bought x notebooks and y binders
Bond [772]
1.50x + 6.50y is your algebraic expression.
4 0
3 years ago
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If I have (-2, 7) and (6, y) distancia = 10 . How can I find y?
shusha [124]

Answer:

y = 13

Step-by-step explanation:

Calculate the distance d using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 2, 7) and (x₂, y₂ ) = (6, y)

d = \sqrt{(6+2)^2+(y-7)^2}, that is

d = \sqrt{8^2+(y-7)^2} = 10

\sqrt{64+(y-7)^2} = 10 ← square both sides

64 + (y - 7)² = 100 ( subtract 64 from both sides )

(y - 7)² = 36 ← take the square root of both sides

y - 7 = 6 ( add 7 to both sides )

y = 13

7 0
2 years ago
Vietnamese: Phát biểu định nghĩa hàm số liên tục. Khảo sát tính liên tục của hàm số sau:
aleksandr82 [10.1K]

Answer:

litrally I don't understand what you are telling

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