Without using calculator or a table, prove that:Cot20°=2tan 50°+tan20°​

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

41/17 as a decimal rounded to the nearest hundredth

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined