Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Nadia
Which of the following is included in GDP (Gross domestic product)? Explain?
a. the sale of stocks and bonds
b. the estimated rental value of owner occupied housing
c. unpaid production of goods and services at home
d. all of the above
I believe the answer is b, but do not know why. Please explain.
1 AnswerEconomics1 decade agoAre the following statements true or false? Briefly explain.?
1.) Trade allows a country to consume outside its production possibilities frontier.
2.) Trade allows a country to produce outside its production possibilities frontier.
2 AnswersHomework Help1 decade agoBriefly answer and explain the following:?
Can production possibility frontiers be used to illustrate scarcity, trade-offs, opportunity cost, efficiency, unemployment, technological advances, and ecoonomic growth?
1 AnswerHomework Help1 decade agoLet W c R^5 be the subspace spanned by the vectors w_1,w_2,and w_3.?
w_1 = ( 2, 0, -1, 3, 4)
w_2 = (1, 0, 0, -1, 2)
w_3 = (0, 1, 0, 0, -1)
Are the following vectors elements of W?
(a) v_1 = ( 2, 1, -2, 8, 3)
(b) v_2 = ( -1, 12, 3, -14, -1)
1 AnswerPhysics1 decade ago(a) Do the following vectors span R^2? Why or why not?
v_1 = (1, 1) and v_2 = (−2, 1)
(b) Do the following vectors span R^3? Why or why not?
v_3 = (2, 1, -1) and v_3 = (3, -1, 1) and v_4 = (1, 4, -4)
3 AnswersMathematics1 decade agoAssume that f is defined on (−1, 1) and is continuous at x = 0.?
Assume that f(0) = 2. Use the definition of continuity to prove that there exists an interval I = (−r, r) for some r > 0 such that for all x ∈ I we have f(x) > 1.
2 AnswersMathematics1 decade agoprove that the sequence {1/n} is Cauchy?
1 AnswerMathematics1 decade agoFind the limit if it exists.?
(a) lim n→+∞ √n((√n + 1) − √n),
(b) lim n→+∞ (1^3 + 2^3 + · · · +n^3) / n^4 .
2 AnswersMathematics1 decade agoLet f D→R be continuous. For each of the following, prove or give a counterexample.?
(a) If D is unbounded, then f(D) is unbounded.
(b) If D is finite, then f(D) is finite
(c) If D is infinite, then f(D) is infinite.
(d) If D is an interval, then f(D) is an interval.
(e) If D is an interval that is not open, then f(D) is an interval that is not open.
2 AnswersMathematics1 decade agoLet f : D→R be continuous. For each of the following, prove or give a counterexample.?
(a) If D is open, then f(D) is open.
(b) If D is closed, then f(D) is closed
(c) If D is not open, then f(D) is not open
(d) If D is not closed, then f(D) is not closed.
(e) If D is not compact, then f(D) is not compact.
2 AnswersMathematics1 decade agoProve that if A is an invertible matrix such that:?
(a) AB = AC, then B = C
(b) AB = 0, then B = 0
3 AnswersMathematics1 decade agoFind two non-zero matrices A and B such that AB = 0?
Note: If a and b are real numbers and ab = 0, then either a = 0 or b = 0, or both numbers are 0. Show by example that this property does not hold for matrices.
5 AnswersMathematics1 decade agoFind a condition on the entries of A that guarantees that A^-1 has integer entries.?
A is a 2X2 matrix having integer entries.
2 AnswersMathematics1 decade agoFor which values of a, b, c is the matrix invertible?
A is a 3X3 matrix
A =
l 1 a b l
l 0 1 c l
l 0 0 1 l
Find A^-1 when it exists.
6 AnswersMathematics1 decade agoMatrix multiplication: For which values of a and b does AB = BA?
A and B are both 2X2 matrices
A =
l 2 5 l
l 1 4 l
B =
l a 3 l
l b 2 l
2 AnswersMathematics1 decade agoShow that A is invertible.?
A is an n x n matrix that satisfies A^m + a(m-1)A^(m-1) + ... + a(1)A + I(n) = 0
Note: I is the identity matrix
1 AnswerMathematics1 decade agoShow that the matrix product of two upper triangular n x n martices is also upper triangular.?
Recall that a square matrix C is upper triangular if c_ij = 0 when i>j.
3 AnswersMathematics1 decade agoLet L: R^n --> R^m be a linear map. Prove that L(0) = 0.?
1 AnswerMathematics1 decade agoThe Matrix A rotates the plane counterclockwise through an angle Θ and then dilates the plane by a factor of c
Find Θ and c.
A =
l 4 -3l
l 3 4l
A is a 2X2 matrix
1 AnswerMathematics1 decade agoWhat 2X2 matrix rotates the plane clockwise 2π/3 radians?
2 AnswersMathematics1 decade ago