Answer:
An expression is a syntactic construct. It must be well-formed: the allowed operators must have the correct number of inputs in the correct places, the characters that make up these inputs must be valid, have a clear order of operations, etc.
First problem:
sec(theta) = 1/sin(theta) = 1/(-1) = -1
Answer: a. –1
Second problem:
cos(theta) = 1
You need to use the inverse cosine function, cos^-1 x.
theta = cos^-1(1) = 0°
Answer: c. 0°
There should be 6 stickers.... 12×3=36... 2+2+2=6
To solve f(x) functions in this case you simply put 3 wherever x is in your problem. f(3)=8-3(3)^2 this equals -19
