Answers:
a) 
b) 
c) 
d) 
Step-by-step explanation:
In this case we are dealing with angles, which can be expressed in degrees (
) or radians (
).
Now, before making the conversions we have to know the equivalence between degrees and radians:

Taking this information into account, let's begin with the answers:
a) 
b) 
c) 
d) 
Answer:
MISSING LENGTH IS 12 M
Step-by-step explanation:
9+9+ ? + ? = 42m
18+ X + X = 42m
2X=42-18
2X=24
X=12
Answer:
y = 98
Step-by-step explanation:
y=21x−7
Let x=5
y = 21*5 -7
y =105-7
y =98
Answer:
False.
Step-by-step explanation:
The border line would be solid if the inequality is less than and equal to or greater than and equal to. In this case it is less than.