I've been on this for several hours so please help me on this . 1 ) prove that h²(cot² α - cot² β) = 2α²

2 ) if α=20°, β=30°, AC=360m, find height PQ​

Step-by-step explanation:

hey I can If you can give meyour Insta

8 2/3 is the answer

step-by-step explanation: just use a calculator

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