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Answer:
Diameter = 19.33
Step-by-step explanation:
Imaging a radius line from O to the endpoints of the 7. call this line R.
Label the part of the vertical line from O to the 90 degree intersection y.
Now you have a right triangle.
Using the Pythagorean theorem:
R² = 7² + y²
also
y = R - 3
substitute for y:
R² = 49 + (R-3)²
R² = 49 + R² - 6R + 9
simplify:
0 = 58 - 6R
6R = 58
R = 9.6667
Diameter = 2(9.6667) = 19.33
find total area by multiplying 350' x 200' = 70,00 sq ft
area of one block, multiply 25' x 25' = 625 sq ft = area for one Security guard
divide area for one security guard into total area of facility 70,000 / 625 =
112 security guards
find how many people for each block = 70,000 / 625 = 112 blocks
12,000 people divided by 112 blocks = 12,000 / 112 = 107.14 rounded to nearest 10 = 110 people per block
Probability helps us to know the chances of an event occurring. The probability that a randomly selected student is a junior is 0.35.
<h3>What is Probability?</h3>
Probability helps us to know the chances of an event occurring.
The probability that a randomly selected student is a junior will be,
P(Junior) = [(Number of Juniors)\(Number of total students)]
P(Junior) = 35/100 = 0.35
Hence, The probability that a randomly selected student is a junior is 0.35.
Learn more about Probability:
brainly.com/question/795909
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Answer:
Use fx graph to draw this so u can see the graph easier
Step-by-step explanation:
