What is the foci of the ellipse x2^2/49+y^2/64=1 a)(0,+ sq. rt.15
b) (0,+1)
c) (0,+ sq. rt, 113
d) (0,+15)

the answer is a

step-by-step explanation:

because your just changing the position of where the shape is

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

mark other person brainliest

what is the rest of the question? ?