<u>ANSWER</u>

<u>EXPLANATION</u>
The Cartesian equation is

We substitute


and

This implies that

Let us evaluate the exponents to get:

Factor the RHS to get:

Divide through by r²

Apply the double angle identity

The polar equation then becomes:

(-3,7)
5(-3)+2(7)=-1
-15+14=-1
Answer:
B. $ 74.75
Step-by-step explanation:
the computer costs $299.
dividing it by 4 to find the share of each room mate we get 299/4= $75.74
A, C, and D are the answers.