If f(x) = 2x+1; Prove f(3+1) =f(3)+f(1)
Proof: 2(3+1)+1 = 2(3)+1 + 2(1)
6+2+1 = 6+1+2
9 = 9
<span>Therefore: f(3+1) =f(3)+f(1)
this is NOT the answer just a question i got on my test its a example</span>
Answer:
where 
Step-by-step explanation:
given equation is:

since no range is provided we can solve for all values of
:


for one cycle of cos 
for all cycles of cos
we should also include negative values.

we can divide each value by 2, to get the solutions for
instead of 
Answer:

This is the solution of the equation
.
In its most general form we can write all solutions of the equation in terms of 
where
or n is an integer.
Answer:
A.
Step-by-step explanation:
12.5/10=1.25.
12.5/8=1.56
12.5/12=1.04
12.5/6=2.08
it's important to know what 1/2 is, 1/3 is, 1/4 is and 1/5 it's also important to know things like 2/2, 2/3, 3/3, 2/4, 3/4, 4/4, 2/5, 3/5, 4/5, and 5/5. You don't need this until 8th grade though. But get on it if you can. Ask your parents or teacher.
Answer:
The rate of change in the car is -$2695 per annum