Answer:
x<-3
The value of x is found in all the numbers that are less than - 3 or all the numbers from - 3 to negative infinity
Please note: - 3 is not included in those numbers
Supplementary=add to 180. U/V=7/13, U+V=180. Solving, U=63 and V=117
Differentiate with respect to x and y
2x +10 y y' = 0
get y' alone
y' = -2x/(10 y)
reduce
y'=-x/(5y)
continue with quotient rule of differentiation
y'' = ( 5y(-1) - (-x) (5y')) / (5y) squared
y'' = (-5y + 5xy') / (25y squared)
reduce by dividing each term by 5
y" = (-y +xy') / (5y squared) answer
Now if the teacher wants you to continue so no y or y' shows
substitute y' = -x/(5y) and y = square root ((5-x squared) / 5)
and simplify
