Draining a tank (Torricelli’s law) A cylindrical tank with a cross-sectional area of 10 m 2 is filled to a depth of 25 m with water. At t = 0 s. a drain in the bottom of the tank with an area of 1 m 2 is opened, allowing water to flow out of the tank. The depth of water in the tank (in meters) at time t ≥ 0 is d ( t ) = ( 5 − 0.22 t ) 2 . a. Check that d (0) = 25. as specified b. At what time is the tank empty? c. What is an appropriate domain for d ?
Draining a tank (Torricelli’s law) A cylindrical tank with a cross-sectional area of 10 m 2 is filled to a depth of 25 m with water. At t = 0 s. a drain in the bottom of the tank with an area of 1 m 2 is opened, allowing water to flow out of the tank. The depth of water in the tank (in meters) at time t ≥ 0 is d ( t ) = ( 5 − 0.22 t ) 2 . a. Check that d (0) = 25. as specified b. At what time is the tank empty? c. What is an appropriate domain for d ?
Draining a tank (Torricelli’s law) A cylindrical tank with a cross-sectional area of 10 m2 is filled to a depth of 25 m with water. At t = 0 s. a drain in the bottom of the tank with an area of 1 m2 is opened, allowing water to flow out of the tank. The depth of water in the tank (in meters) at time
t
≥
0
is
d
(
t
)
=
(
5
−
0.22
t
)
2
.
(x)=2x-x2
2
a=2, b = 1/2, C=0
b) Vertex v
F(x)=ax 2 + bx + c
x=
Za
V=2.0L
YEF(- =) = 4
b
(글)
JANUARY 17, 2025
WORKSHEET 1
Solve the following four problems on a separate sheet. Fully justify your answers to
MATH 122
ล
T
earn full credit.
1. Let f(x) = 2x-
1x2
2
(a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c
and indicate the values of the coefficients: a, b and c.
(b) Find the vertex V, focus F, focal width, directrix D, and the axis of
symmetry for the graph of y = f(x).
(c) Plot a graph of y = f(x) and indicate all quantities found in part (b)
on your graph.
(d) Specify the domain and range of the function f.
OUR
2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1
and u is the unit step function:
u(x) = { 0
1 if x ≥0
0 if x<0
y = u(x)
0
(a) Write a piecewise formula for the function g.
(b) Sketch a graph of y = g(x).
(c) Indicate the domain and range of the function g.
X
фирм
where u is the unit step function defined in problem 2.
3. Let…
Question 1
"P3
Question 3: Construct the accessibility matrix Passociated with
the following graphs, and compute P2 and identify each at the
various two-step paths in the graph
Ps
P₁
P₂
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