Let y = √4+7t
then u= 4+7t
y=√u = u^½
du/dt= 7
dy/du = ½U^-½
dy/dt = du/dt • dy/du
= 7×½U^-½
= 7/2√U
= 7 / (2{√4+7t})
N=12-2 is the answer of this question
Answer: take the first digit of a and divide it by b
Step-by-step explanation: and that should give you your answer and if not please feel free to mesage me.
Answer:
D
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
when x=0, y=0, so B is impossible
when X=2, Y=1,
and thus C is correct
