Try these solutions:
<u>Task 1.</u>
a) the required angle is arctan(CG/AC);
b) according to the condition CG=AE=11.4 (cm.);
c) BC=EH=9.6 (cm.), then

d) the required angle is:

Answer: 29°
<u>Task 2.</u>
a) the required angle is EFV (see the attached picture): arctan(EV/FE);
b) to calculate FE: FE=0.5AB=7.25 (cm.);
c) to calculate EV:

d) to calculate the required angle:
m(∠EFV)=arctan(13.80996/7.25)=arctan(1.9048)≈62.302°=62°.
Answer: 62°
If f(x) = t^2 then f(t-4) = t^2 because there is no "x" in the function to plug t-4 into.
The point-slope form is

m, the slope, is 1/2.
To find b, we plug in the point (6,-3) to the equation:

First, we multiply 1/2 × 6 = 3. Then we subtract 3 from both sides. We find that b is -6.
Therefore, the point-slope equation is:

This is the second option.
Answer:
Answer D : All real numbers
Step-by-step explanation:
Notice that all real numbers are covered in the Domain of the piece-wise function:
union with
union with 
That covers the entire Real number line.