Answer:
-55
Step-by-step explanation:
It would be -55 because the exponent is 4. So, that would leave -55 to be the right answer.
Im doing it right now and my best choice is going to have to be D Sorry if im wrong but i noticed that no one answered and i decided to give a shot again im sorry if it's wrong. Have a nice day! :3
<u>ANSWER</u>
True
<u>EXPLANATION</u>
The given trigonometric equation is

Recall the double angle identity:

We apply this identity to obtain:

We maintain the LHS and simplify the RHS to see whether they are equal.
Expand the parenthesis


Recall that:


We apply these identities to get:




Also



Therefore the correct answer is True
Answer:
The answer is (C) Y = 69.99 + 4.99x
Step-by-step explanation:
x represents the number of movies ordered by Elvira.
69.99 is the constant Elvira has to pay for her cable service.
As we can see on the answer (C) the 4.99 is multiplied by x which represents the number of movies ordered by Elvira and she is charged 4.99 for each one so the logical thing to do is that we multiply 4.99 by x (number of movies ordered) then we add 69.99 to the product of 4.99x and we get the total amount Elvira has to pay this month
So the formula to find how much Elvira has to pay this month would be (C) y = 69.99 + 4.99x.