Answer:
b easy question but can I get brainliest
Step-by-step explanation:
Answer:
A,D,E, and F
Step-by-step explanation:
Answer:
-10xy+2x+y
Step-by-step explanation: Combine like terms.
-7xy-3xy=-10xy
x+x=2x
y is by itself because there is only one y term
Answer:
-2
Step-by-step explanation:
For function

we have that

. This means that period of cosine function is π. Then from the formula for period

you obtain that

and b=2.
So, the function is

. If f(0)=4, then

and, respectively, a=4.
Answer: 
.