Answer: N50°W
Step-by-step explanation:
It should be the opposite: N50°W
3 is the first one.
-1 is the 2nd
and 7 is the 3rd
Answer:
The water level is dropping at a rate of 0.24 ft/s
Step-by-step explanation:
Here, we simply want to calculate the change in depth (height of the cone) , given the volume change
Mathematically, we have the volume of a cone as;
V = 1/3 * π * r^2 * h
we are given dv/dt as 12 ft^3/m
dv/dh = 1/3 * π * r^2
Substituting the value for the radius, we have
dv/dh = 1/3 * 22/7 * 4^2 = 50.29
dh/dt = dh/dv * dv/dt
dh/dv = 1/(dv/dh) = 1/50.29
Thus,
dh/dt = 1/50.29 * 12
dh/dt = 0.24 ft/s
(3x-5)(2x+7) =
= 3x·2x + 3x·7 - 5·2x - 5·7
= 6x² + 21x - 10x - 35
= 6x² + 11x - 35
