Answer:
Step-by-step explanation:
Suppose that the side length is s. Imagine that one side is level. Draw a vertical line through the top vertex perpendicular to the base (level side). Label this vertical line "h." Then h and s are related as follows:
√3 h
sin 60 degrees = ------- = --------
2 s
s√3
and so h = the height of the triangle = -----------
2
The area of this triangle is (1/2)(base)(height), which here is:
(1/2)(s/2)( s√3 /2), or
(s^2)√3
A = ---------------
8
Let x be the number of hours and Let y be the number of views.
x y
1 125
2 250
3 375
4 500
5 625
P=Ae^kt
225 = 210 * e^(k*(1990-1980)
225/210=e^10k ln(225/210)=10k
k=ln(225/210)/10=0.0069
P = 210*e^(0.0069t)
for 2000 ===> t = 2000-1980=20
P = 210*e^(0.0069*20)
P=241.0749=241
Answer: 108 feet
Step-by-step explanation: (135.5-27.5) = 108 feet
E<span>xactly one plane contains a given line and a point not on the line.</span>The statement that best describes the relationship between a line and a point in a plane is that, there is exactly one plane containing a given line and a point not on the line.
