1. Which of the following could represent a function, f (x,y), with first-order partial derivatives ∂ƒ/...
1. Which of the following could represent a function, f (x,y), with first-order partial derivatives ∂ƒ/ ∂x = 3xy (xy + 2) ∂ƒ/ ∂y = x2 (2xy + 3)
A. xy (x2y + 3)
B. x3y2 + 3x2 – y – 6
C. x2 (xy2 + 3)
D. none of these
E. x3y2 + 2x2y3 + 1
2. It the consumption function is
C = 0.02Y2 + 0.1Y +25.
Find the value of Y when MPS = 0.38.
3. State the degree of homogeneity of the production function Q = 7K1/4 (5L1/2 K1/2 + 2K3/4)
A. ¼
B. ¾
C. 1
D. Not homogeneous
E. ½
4. Make x the subject of y = In (3 + e2x)
A. x = (y – In 3)/ 2
B. x = (ey – 3)/ 2
C. x = y/ (2 In 3)
D. x = [In (3 – ey)]/ 2
E. x = In (√ey – 3)
Please show all the step and explain the answer, thanks!!!
Homework Answers
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1. Which of the following could represent a function, f (x,y),
with first-order partial derivatives ∂ƒ/...
1. Find the first and second partial derivatives: A. z=f(x,y) = x2y3 - 4x2 + x2y-20...
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#16 Please. Step By Step explanation would help me understand. Thank you. In Exercises 1-17 find...
#16 Please.
Step By Step explanation would help me understand. Thank
you.
In Exercises 1-17 find the general solution, given that yı satisfies the complementary equation. As a byproduct, find a fundamental set of solutions of the complementary equation. 1. (2x + 1)y" – 2y' - (2x + 3)y = (2x + 1)2; yı = e-* 2. x?y" + xy' - y = 3. x2y" – xy' + y = x; y1= x 4 22 y = x 1 4....
Donna and Jim are two consumers purchasing strawberries and chocolate. Jim’s utility function is U(x,y) =...
Donna and Jim are two consumers purchasing strawberries and chocolate. Jim’s utility function is U(x,y) = xy and Donna’s utility function is U(x,y) = x2y where x is strawberries and y is chocolate. Jim’s marginal utility functions are MUX=y and MUy=x while Donna’s are MUX=2xy and MUy=x2. Jim’s income is $100, and Donna’s income is $150. What is the optimal bundle for Donna if the price of strawberries is $2 and the price of chocolate is $4?
2. Solve the following set of homogeneous first-order ODEs using the substitution y = vx. (a)...
2. Solve the following set of homogeneous first-order ODEs using the substitution y = vx. (a) 2xy = 3(x2 + y²), given y = 2 when x = 1. (b) x = y(In x – Iny), given y = 4 when x = 1. (C) (x2 + 3xy + y2). dx - x2.dy = 0, given y = 0 when x = 1.
Q6 [10+1+3=14 Marks] Let F be a force field given by F(x, y) = y2 sin(xy?)...
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(1 point) A function f is defined on the whole of the x, y-plane as follows: f(x,y)0 fy0 otherwise For...
2x+5xy* 1) Let f(x,y) = *3+x3y2 Which among the following is true about limf(x,y)? (x,y)--(0,0) a....
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Could you do number 4 please. Thanks 1-8 Evaluate the surface integral s. f(x, y, z) ds Vx2ty2 -vr+) 1. f(x, y, z) Z2; ơ is the portion of the cone z between the planes z 1 and z 2 1 2. f(x, y, z)...
Could you do number 4 please. Thanks
1-8 Evaluate the surface integral s. f(x, y, z) ds Vx2ty2 -vr+) 1. f(x, y, z) Z2; ơ is the portion of the cone z between the planes z 1 and z 2 1 2. f(x, y, z) xy; ơ is the portion of the plane x + y + z lying in the first octant. 3. f(x, y, z) x2y; a is the portion of the cylinder x2z2 1 between the planes...
Find all the first order partial derivatives for the following function. f(x,y) = (9x3y5 – 10)...
Find all the first order partial derivatives for the following function. f(x,y) = (9x3y5 – 10) 2 of A. Of ox = 27x2y5; - 45x3y4 Oy of 54x2y5 (9x3y5 – 10); dy of B. = = 90x3y4 (9x3y5 – 10) ox C. of ox df 90x3y4(9x3y5 – 10); ду = 54x2y5 (9x3y5 – 10) of of D. = 2(9x3y5 – 10); = 2(9x3y5 – 10) Ox ду
1. Find the first and second partial derivatives: A. z=f(x,y) = x2y3 - 4x2 + x2y-20 B. z=f(x,y) = x+ y - 4x2 + x2y-20 2. Find w w w x2 - 4x-z-5xw + 6xyz2 + wx - wz+4 = 0 Given the surface F(x,y) = 3x2 - y2 + z2 = 0 3. Find an equation of the plane tangent to the surface at the point (-1,2,1) a. Find the gradient VF(x,y) b. Find an equation of the plane...
#16 Please.
Step By Step explanation would help me understand. Thank
you.
In Exercises 1-17 find the general solution, given that yı satisfies the complementary equation. As a byproduct, find a fundamental set of solutions of the complementary equation. 1. (2x + 1)y" – 2y' - (2x + 3)y = (2x + 1)2; yı = e-* 2. x?y" + xy' - y = 3. x2y" – xy' + y = x; y1= x 4 22 y = x 1 4....
2. Solve the following set of homogeneous first-order ODEs using the substitution y = vx. (a) 2xy = 3(x2 + y²), given y = 2 when x = 1. (b) x = y(In x – Iny), given y = 4 when x = 1. (C) (x2 + 3xy + y2). dx - x2.dy = 0, given y = 0 when x = 1.
Q6 [10+1+3=14 Marks] Let F be a force field given by F(x, y) = y2 sin(xy?) i + 2xy sin(xy?)j. (a) Show that F. dr is exact by finding a potential function f. (b) Is I = S, y2 sin(xy2) dx + 2xy sin(xy?) dy independent of path C? Justify your answer. (c) Use I to find the work done by the force field F that moves a body along any curve from (0,0) to (5,1).
(1 point) A function f is defined on the whole of the x, y-plane as follows: f(x,y)0 fy0 otherwise For each of the following functions g determine if the corresponding functionf is continuous on the whole plane. Use "T" for true,"F" for false 2. g(x, y) 9x2y 3. gx, y)-4 sin) 4. g(x, y) xy sin(xy) 5. g(x, y) 3xy
(1 point) A function f is defined on the whole of the x, y-plane as follows: f(x,y)0 fy0 otherwise For...
2x+5xy* 1) Let f(x,y) = *3+x3y2 Which among the following is true about limf(x,y)? (x,y)--(0,0) a. By using the two path test we can deduce that the limit does not exist b. By using the two path test we can deduce that the limit exists c. The limit is 2 d. None of the above O a. O b. O c. O d. 2) Let f(x,y) Vx+1-y+1 xy Then lim f(x,y) (xy)+(0,0) a. is 0 b.is c. is 1 d....
Could you do number 4 please. Thanks
1-8 Evaluate the surface integral s. f(x, y, z) ds Vx2ty2 -vr+) 1. f(x, y, z) Z2; ơ is the portion of the cone z between the planes z 1 and z 2 1 2. f(x, y, z) xy; ơ is the portion of the plane x + y + z lying in the first octant. 3. f(x, y, z) x2y; a is the portion of the cylinder x2z2 1 between the planes...
Find all the first order partial derivatives for the following function. f(x,y) = (9x3y5 – 10) 2 of A. Of ox = 27x2y5; - 45x3y4 Oy of 54x2y5 (9x3y5 – 10); dy of B. = = 90x3y4 (9x3y5 – 10) ox C. of ox df 90x3y4(9x3y5 – 10); ду = 54x2y5 (9x3y5 – 10) of of D. = 2(9x3y5 – 10); = 2(9x3y5 – 10) Ox ду
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