You could use your calculator or use the formula of nCr =n!/r!(n-r)! 15!/3!(15-r)! to get 455.
Answer:
Step-by-step explanation:
a = 13 ; b = 21 ; c = 27
S = (a + b + c)/2
s- a = 30.5 - 13 = 17.5
s - b = 30.5 - 21 = 9.5
s -c = 30.5 - 27 = 3.5
Area = 
A = 27°
Step-by-step explanation:
B Represent 
Answer:
<h2>(fog)( x) = 4x² + 2</h2>
Step-by-step explanation:
f(x) = x² + 2
g(x) = 2x
To find (fog)( x) substitute g(x) into f(x) that's for every x in f (x) replace it with g (x)
We have
(fog)( x) = ( 2x)² + 2
We have the final answer as
<h3>(fog)( x) = 4x² + 2</h3>
Hope this helps you
As a navigator of this ship, you must consider the measure of the arc. Using the distance between the two lighthouses and the arc measurement, you can find the radius and center of the circle to set a reasonable distance in keeping the ship in safe waters.
