Answer:
2341
Step-by-step explanation:
The general function for the cos function is:
<span>y=Acos<span>(B<span>(x+C)</span>)</span></span>
where A
is the amplitude, <span><span>2π</span>B</span>
is the period
and phase shift is C
.
For our function: f(x) = −4 cos(3x − π) + 1 =-4cos(3(x-π/3))+1
the amplitude is:-4
the phase shift is: -π/3
<h3>
Answer: 25.9</h3>
========================================
x = length of AB
The parallel bases of the trapezoid can be added up, and divided over 2, to get the length of the midsegment. The midsegment is the line that cuts the nonparallel sides (or legs) of the trapezoid in half. The midsegment is parallel to the bases.
So,
(AB+DC)/2 = MN
(x+11.5)/2 = 18.7
x+11.5 = 2*18.7
x+11.5 = 37.4
x= 37.4-11.5
x = 25.9
AB = 25.9
Pi is approximately equal to 3.14159.
