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

(x-5)1/2+5=2 what is a possible solution?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate