Angle is in standard position, if sin(0) = -1, and A<$< 3,4, find cos(O).
Why?

0

Step-by-step explanation:

Sin(theta) = -1

Theta = 270° or 3pi/2

Cos(theta) = 0

Reason:

sin²(0) + cos²(0) = 1

(-1)² + cos²(0) = 1

cos²(0) = 0

cos(0) = 0

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

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