Answer:
1. Recursive formula: b(n-1)+2
2. Explicit formula: −2n+5
3. -20
4. 2, 11, 20, 29, 38, 47, 56, 65, 74, 83, 92, 101, 110, 119, 128
Step-by-step explanation:
83
combining like terms means to get rid of one factor on both sides of the equation.
a) tan40°=X÷3
3tan40°=x
x=2.517
