cscθ·cos^2θ+sinθ= cscθ

Step-by-step explanation:

b. Since csc theta = 1/sin theta, we can multiply both sides by sin theta and you will end up with

which is an identity.

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

60: 45 =12: 9 =4: 3 so the answer is 4: 3