Answer: store 1 f(X)= 70+2.50X Store 2 f(x) 60+5x
Step-by-step explanation: So i gave you the equations because i don't really understand the what its asking me for and the lower price is store 1
Answer:
A = 15 cm^2
Step-by-step explanation:
A = 1/2 bh where b is the base and h is the height
When the triangle is a right triangle the legs are the base and the height
A = 1/2 (6) * (5)
A = 15 cm^2
82 is your answer , I subtracted 52-40 and got 12 , so I know that the RC side is 12 more than 70.
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: 
.
The graph would not make a parallelogram.