If -3x^3-xy-5=y then find the equation of all tangent lines to the curve when x=1

15/16 as a decimal rounded to the nearest hundredth

Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20