After taking a certain class, the percentage of material retained P t decreases with the number of months t after taking the class. P t can be approximated by P t = t + 90 0.16 t + 1 a. Determine the percentage retained after 1 month, 4 months, and 6 months. Round to the nearest percent. b. As t becomes infinitely large, what percentage of material will be retained?
After taking a certain class, the percentage of material retained P t decreases with the number of months t after taking the class. P t can be approximated by P t = t + 90 0.16 t + 1 a. Determine the percentage retained after 1 month, 4 months, and 6 months. Round to the nearest percent. b. As t becomes infinitely large, what percentage of material will be retained?
After taking a certain class, the percentage of material retained
P
t
decreases with the number of months t after taking the class.
P
t
can be approximated by
P
t
=
t
+
90
0.16
t
+
1
a. Determine the percentage retained after 1 month, 4 months, and 6 months. Round to the nearest percent.
b. As t becomes infinitely large, what percentage of material will be retained?
1. Show that the vector field
F(x, y, z)
=
(2x sin ye³)ix² cos yj + (3xe³ +5)k
satisfies the necessary conditions for a conservative vector field, and find a potential function for
F.
1. Newton's Law of Gravitation (an example of an inverse square law) states that the magnitude
of the gravitational force between two objects with masses m and M is
|F|
mMG
|r|2
where r is the distance between the objects, and G is the gravitational constant. Assume that the
object with mass M is located at the origin in R³. Then, the gravitational force field acting on
the object at the point r = (x, y, z) is given by
F(x, y, z) =
mMG
r3
r.
mMG
mMG
Show that the scalar vector field f(x, y, z) =
=
is a potential function for
r
√√x² + y² .
Fi.e. show that F = Vf.
Remark: f is the negative of the physical potential energy, because F = -V(-ƒ).
2. Suppose f(x) = 3x² - 5x. Show all your work for the problems below.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.