20 POINTS HELP ASAP Verify which of the following are identities.
cose
1) 1 +
= 4 sece
cote (1 - sina)
1
cote
2) 15 cose
= 15 sine
cose
csc e
a. Only the first equation is an identity.
b. None of the equations are identities.
c. Only the second equation is an identity.
d. Both the equations are identities.

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?