Answer:
Dy/dt = 11.67 ft/s
Step-by-step explanation: See Annex
In Annex, Triangles ACE and BCD are similar then, we can write
( y- x ) / y = 6 / 15
15*y -15*x = 6*y
15*y - 6*y = 15*x
9*y = 15*x
y = (15/9)*x
Differentiating with respect time on both sides of the equation we get
Dy/dt = (15/9) Dx/dt (1)
Where we know Dx/dt = 7 ft/s, and according to (1) Dy/dt does not depend on x (distance between man and the pole, only depend on the speed f the man
Dy/dt = (15/9) * 7
Dy/dt = 11.67 ft/s
We assume you intend that cars shipped to Japan are modeled by
j(n) = 2·3^(n-1)
and that those shipped to Vietnam are modeled by
v(n) = 5 + 11·(n-1)
The value of j(n) will exceed the value of v(n) in
month 4.
Well you could get 7 right
Answer: 1846.1604 (idk if you needed it worked out but that’s the answer w all decimal places)
Answer: 
Step-by-step explanation:
Apply the distributive property to get 14x + 42 = 1
Subtract 42 from both sides to get 14x = -41
Divide both sides by 14