(a) Use a Riemann sum with m = n = 2 to estimate the value of the sin(x + y) dA R where R = [0, π] × [0, π]. Take the sample points to be lower left corners. (Round your answer to three decimal places.)

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Tim has obtained a 3/27 balloon mortgage. after the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. how many years will he be paying for his mortgage in total?