Answer:
???
Step-by-step explanation:
Answer: k
Step-by-step explanation:
Answer:
Circumference of the circle is 
Step-by-step explanation:
we have to find the circumference of the given circle.
Given:
Diameter=42 m

Circumference of a circle= 

So, the circumference of the circle is 
Answer:
angleB = 41.4°
Step-by-step explanation:
✨ Trigonometry✨
cos theta = adj / hyp
theta = inverse-cos adj / hyp
theta = inverse-cos 12 / 16
theta = inverse-cos .75
theta = 41.4°
*theta is the 0 with a line through it
hi
f°g mean apply g(x) and then use result of g(x) as "x" in f(x)
so as g(x) = x² +1 and f(x) = 3x+2
so if we call g(x) X we have
f( X) = 3 X +2
now we replace " X" for it's value
f(X) = 3 ( x² +1) +2
f(X) = 3x² +3 +2
f(X) = 3x² +5
so f°g = 3x² +5