Miền D giới hạn bởi hai đường tròn y2+x2=1 và x2+y2=25. Khi đó tích phân ∬D(x2+7,6y)dA=∫2π0dθ∫ba[r3cos2θ+C(r )sinθ]dr trong đó

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !

How is the interquartile range calculated?

In 3 years, dianna will be 4 times as old as she was 33 years ago. how old is dianna now? translate the phrase "in 3 years" into algebraic terms.