Economics: supply and demand elasticity. The demand, D ( x ) , and supply S ( x ) , functions for a multipurpose printer are as follows: D ( x ) = q = 480 e − 0.003 x and S ( x ) = q = 150 e 0.004 x . a. Find the equilibrium point. Assume that x is the price in dollars. b. Find the elasticity of demand when x = $ 100 .
Economics: supply and demand elasticity. The demand, D ( x ) , and supply S ( x ) , functions for a multipurpose printer are as follows: D ( x ) = q = 480 e − 0.003 x and S ( x ) = q = 150 e 0.004 x . a. Find the equilibrium point. Assume that x is the price in dollars. b. Find the elasticity of demand when x = $ 100 .
Is the function f(x) shown in the graph below continuous at x = −5?
f(x)
7
6
5
4
2
1
0
-10
-9
-8 -7
-6
-5
-4
-3
-2
-1 0
1
2
3
4
5
6 7 8 9
10
-1
-2
-3
-4
-5
-6
-7
Select the correct answer below:
The function f(x) is continuous.
○ The right limit exists. Therefore, the function is continuous.
The left limit exists. Therefore, the function is continuous.
The function f(x) is discontinuous.
○ We cannot tell if the function is continuous or discontinuous.
4. Evaluate the following integrals. Show your work.
a)
-x
b) f₁²x²/2 + x² dx
c) fe³xdx
d) [2 cos(5x) dx
e) √
35x6
3+5x7
dx
3
g) reve
√ dt
h) fx (x-5) 10 dx
dt
1+12
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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