4185.44 divided by 74 =5656 to cheake use number sence to decied on the placment of the decimal point

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

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) ).