Answer:
-390 mph
Step-by-step explanation:
Let a and b represent, respectively, the distances of A and B from the airport. The distance d between the planes is then given by the Pythagorean theorem as ...
d² = a² + b²
Differentiating with respect to time, we have ...
2d·d' = 2a·a' +2b·b'
Solving for d', we get ...
d' = (a/d)a' +(b/d)b'
The value of d at the time of interest is ...
d = √(a² +b²) = √(30² +40²) = √2500 = 50
Then the rate of change of separation is ...
d' = (30/50)(-250 mph) +(40/50)(-300 mph) = (-150 -240) mph
d' = -390 mph
The distance between planes is decreasing at 390 miles per hour.
Answer:
what do you need help with?
Step-by-step explanation:
It's not prime and it can be timed by 2
Answer:
A line segment has one dimensions.
Step-by-step explanation:
A line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints.
Dimension is an aspect or feature of an object.
A line segment, let us say AB has two endpoints and has only one measurable feature that is its length which is actually the distance between the two end points A and B.
Hence, a line segment is one-dimensional.
Answer:
Na20+H20 -> 2NaOH
Step-by-step explanation:
