Answer:
The answers of the proof are the following:
2. Multiplication Property of Equality
3. x-2 = 8
4. Addition Property of Equality
5. x=10, Simplifying
A.
When 0 is plugged in, it is 5*2^0=5*1=5, resulting in the point (0,5)
When 2 is plugged in, it is 5*2^2=5*4=20, resulting in the point (2,20)
<span>The parent cosine function can be transformed and translated. So, from the basic function cos(x) we can obtain function acos(bx+c). In our case, a=3- amplitude, b=10- the period change and c=-pi- the phase shift. So, the parent cosine function is mutiplied with 3 (which gives the amplitude of the function, 3*0.5=1.5). The period of the function is changed, and is 2pi/b=2pi/10=pi/5 and the cos(x) is phase shifted for c/b=-pi/10.</span>
Answer:
Option A
Step-by-step explanation:
The complete question is shown in the attachment.
The sum of angles in a triangle is 180 degrees.
This implies that:

m<A+138=180
m<A=180-138=42
Now we use the sine rule to find AC=b

This implies that:

