Yes it is an exponential function as the value of y increases exponentially as x increases.
X = 2
4x + 8 = 16
-8 -8
----------------
4x= 8
-- --
4 4
------------
x=2
Hello!
To find cosine, use the formula cos = adjacent / hypotenuse.
According to angle B, adjacent of angle B is side A, and the hypotenuse is side c because the hypotenuse is always opposite the right angle.
Therefore, the cosine of angle B is a/c.
Answer:
Step-by-step explanation:
→ 
→
[ add the x inside the bracket ]
→
[ remove the bracket ]
→
[ final answer ]