The vertex angle of any triangle of the dodecagon formed by radii and a side is 360/12=30º.
The half-length of the base of the triangle is sin15=0.2588 approx.
Since there are 12 sides there are 24 half-sides in the perimeter=6.2117.
Answer:
-22
Step-by-step explanation:
5-27
Answer:
11.8 ;
0.1036360
Step-by-step explanation:
Mean births per day, μ = number of births per year / number of days in a year ;
4310 / 365 = 11. 8 births per day
From poisson distribution :
P(x) = (μ^x * e^-μ) ÷ x!
P(x = 13) = (11.8^13 * e^-11.8) ÷ 13!
P(x = 13) = 6.453438E8 / 13!
P(x = 13) = 0.1036360
Equation of a circle: (x - h)² + (y - k)² = r²
(h, k) = center
r = radius
We have the following values:
(-5, 7) = center (h, k)
3 = radius (r)
~Substitute with the given values
(x - (-5))² + (y - (7))² = (3)²
~Simplify
(x + 5)² + (y - 7)² = 9
Answer: (x + 5)² + (y - 7)² = 9
Best of Luck!
Answer:
C; In fifteen hours, the pilot can fly 4,050 miles.
Step-by-step explanation:
Okay, so distance = rate*time.
To find the rate, divide the distance by time.
540/2 = 270.
So, at this rate the pilot can fly 270 miles every hour. 270*15 = 4,050.
