Answer:
-19
Step-by-step explanation:
Answer:
3.5
Step-by-step explanation:
First we use the concept of relative speed.
The rates of the 2 planes are 625 mph & 575 mph.
Relative speed will be:
(speed of plane A)+(speed of plane B)
=625+575
=1,200 mph
Distance=4200 miles
Thus the time taken for them to meet will be:
Time=distance/speed
=4200/1200
=3.5 hours
We therefore conclude that the planes met after 3.5 hours.
Hope this helps!
Answer: Number 1- linear, Number 2- linear, Number 3- Nonlinear, Number 4- linear, Number 5- Nonlinear, Number 6- Nonlinear, Number 7- Nonlinear,
Number 8- linear
Step-by-step explanation: Hope this helps
It’s C, i just did it and i got 90% of them right. It’s C.
Answer:
dA/dt=k(M-A)
Step-by-step explanation:
We need to transform the sentence "the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized" into a differential equation.
So, the rate at which a subject is memorized is equivalent to dA/dt.
Additionally, the amount that is left to be memorized is the total amount of a subject to be memorized less the the amount memorized, so it is equal to:
M - A
Finally, dA/dt and (M-A) are proportionals, so there is a constant k for which it is true that:
dA/dt = k(M-A)
So, A differential equation for the amount A(t) is:
dA/dt = k(M-A)
