At a hot air ballon festival, erica spots a red ballon due east at an angle of elevation of 36 degrees. she turns due west and sees a blue ballon at an angle of elevation of 51 degrees. if the altitude of the blue ballon is 296 meters, the altitude of the blue ballon is 461 meters, and erica is 1.6 meters tall, find the distance between the balloons.

Proportions in triangles solve for x

Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books

Consider the linear model for a two-stage nested design with b nested in a as given below. yijk=\small \mu + \small \taui + \small \betaj(i) + \small \varepsilon(ij)k , for i=1,; j= ; k=1, assumption: \small \varepsilon(ij)k ~ iid n (0, \small \sigma2) ; \small \taui ~ iid n(0, \small \sigmat2 ); \tiny \sum_{j=1}^{b} \small \betaj(i) =0; \small \varepsilon(ij)k and \small \taui are independent. using only the given information, derive the least square estimator of \small \betaj(i) using the appropriate constraints (sum to zero constraints) and derive e(msb(a) ).