Answer:
a = 4
Step-by-step explanation:
We can set up an equation to model this:
a = 
Now, we can plug in the information given to find the value of k:
9 = 
9 = 
36 = k
Now, we can find the value of a when b = 3.
a = 
a = 
a = 4
To answer this since the discount is 15% the retail is 75% so you would put it in a ratio or part over whole so .75=2210 and 100%=x so then you would divide 2210 by .75 and you get 2946 but I’m not sure so...
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1 , then
sin²x = 1 - cos²x and cos²x = 1 - sin²x
Consider the left side
← expand numerator/denominator using FOIL
=
= 
= 
= 
= cot²A = right side , thus proven
Answer:
It's a parabola.
Step-by-step explanation: