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Concept explainers
Multiplier principle. Suppose that Congress enacts a one-time-only 10% tax rebate that is expected to infuse $y billion, 5 ≤ y ≤ 7, into the economy. If every person and every corporation is expected to spend a proportion x, 0.6 ≤ x ≤ 0.8, of each dollar received, then, by the multiplier principle in economics, the total amount of spending S (in billions of dollars) generated by this tax rebate is given by
What is the average total amount of spending for the indicated ranges of the values of x and y? Set up a double integral and evaluate it.
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Chapter 7 Solutions
FIN 108 ISU LOOSE >IP<
- A survey finds that 60% of people prefer coffee over tea, and 30% prefer both coffee and tea. What is the probability that a randomly chosen person prefers at least one of the two drinks? Define the following events: • A: Preferring coffee. • B: Preferring tea.arrow_forwardPREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE A Find the derivative of the function and evaluate f'(x) at the given val f(x) = (√√√x + 3x) (x3/2 - x); x = 1 f'(x) = 9x 412 (12x (13) 2 - 4x-3√√√x f'(1) = 2 Need Help? Read It Watch It SUBMIT ANSWERarrow_forwardConsider the following functions. g(x) = x + √3x h(x) = 3x-5 x + √3x f(x) = = 3x-5 Find the derivative of each function. g'(x) h'(x) = = f'(x) = 3 = +1 2√3x 3 (3√3x + 10√√x +5√√√3 2√√x (3x-5)² Need Help? Read It SUBMIT ANSWERarrow_forward
- math 5arrow_forwardExplain why 4 | 0 but 0 + 4. Your response should make use of the definition of "divides". Keep in mind that "divides" means something different than "divided by".arrow_forward"Solve the following differential equation using the Operator Method and the Determinant Method:" y'''' + 3y'"' + 3y'' + y = xarrow_forward
- practice for exam please helparrow_forwardDecide if the following are true or false: • true 5 = 2 (mod 3) • true 0 = 16 (mod 4) • false 9 = 10 (mod 3) • false -8 = 19 (mod 9).arrow_forwardDecide if each of the following are true or false: ⚫ false 4 | 13 ⚫ true -8 64 . ⚫ true 18 | 9 • ⚫ true 6 | 0 • • true 1 | −1arrow_forward
- math 2arrow_forwardFig. 4.22. Problems 4.1 (A). Determine the second moments of area about the axes XX for the sections shown in Fig. 4.23. [15.69, 7.88, 41.15, 24; all x 10-6 m. All dimensions in mm IAA inn 100 25 50 25 50 80 50 50 Fig. 4.23. X 80 60arrow_forwardے ملزمة احمد Q (a) Let f be a linear map from a space X into a space Y and (X1,X2,...,xn) basis for X, show that fis one-to- one iff (f(x1),f(x2),...,f(x) } linearly independent. (b) Let X= {ao+ax₁+a2x2+...+anxn, a;ER} be a vector space over R, write with prove a hyperspace and a hyperplane of X. مبر خد احمد Q₂ (a) Let M be a subspace of a vector space X, and A= {fex/ f(x)=0, x E M ), show that whether A is convex set or not, affine set or not. Write with prove an application of Hahn-Banach theorem. Show that every singleton set in a normed space X is closed and any finite set in X is closed (14M)arrow_forward
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage LearningGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
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