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Concept explainers
(a)
Whether the situation “A telephone number” involves a permutation or a combination.
(b)
Whether the situation “A Social Security number” involves a permutation or a combination.
(c)
Whether the situation “A hand of cards in poker” involves a permutation or a combination.
(d)
Whether the situation “A committee of politician” involves a permutation or a combination.
(e)
Whether the situation “The “combination” on the combination lock” involves a permutation or a combination.
(f)
Whether the situation “A lottery choice of six numbers where the order does not matter” involves a permutation or a combination.
(g)
Whether the situation “An automobile license plate” involves a permutation or a combination.
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Chapter 8 Solutions
A Graphical Approach to College Algebra, Books a la Carte Edition (6th Edition)
- Q/(a)Let X be a finite dimension vector space over a field F and S₁,S2CX such that S₁SS2. Show that whether (1) if S, is a base for X then base for X or not (2) if S2 is a base for X then S, is a base for X or not (b) Show that every subspace of vector space is convex and affine set but the conevrse need not to be true. allet M be a non-empty subset of a vector space X over a field F and x,EX. Show that M is a hyperspace iff xo+ M is a hyperplane and xo€ xo+M. bState Hahn-Banach theorem and write with prove an application about it. Show that every singleten subset and finite subset of a normed space is closed. Oxfallet f he a function from a normad roace YI Show tha ir continuour aty.GYiffarrow_forward7 3 2 x+11x+24 9 2 5 x+11x+24arrow_forward2 4 + 4x 2x 8 || 12arrow_forward
- 1 5 1 2 3 1 6 7 -4 -3 -2 -1 0 1 2 3 -1 4 Which point is not included in the solution cot for the inequality? 5arrow_forwardWhich graph represents the solution of y > x2 + 2?arrow_forwardA boat's value over time, x, is given as the function f(x) = 400(b)x. Which graph shows the boat's value decreasing at a rate of 25% per year?arrow_forward
- A boat's value over time, x, is given as the function f(x) = 400(b)x. Graph the boat's value decreasing at a rate of 25% per year?arrow_forwardDescribe the y-intercept and end behavior of the following graph: 0 2 4 -2 -4 -6arrow_forwardComputing Ending Inventory under Dollar-Value LIFO Wheels Inc. accounts for inventory using the dollar-value LIFO method. The following information is available for Year 1 through Year 3 (listed chronologically). Year Ending Inventory at FIFO Price Index Year 1 Year 2 Year 3 $6,000 1.00 9,600 1.10 12,000 1.13 Compute ending inventory under the dollar-value LIFO method for Year 1, Year 2, and Year 3. • Note: Round your answers to the nearest whole dollar.arrow_forward
- Upland Co.'s inventory records showed the following data accounted for in a perpetual inventory system. Unit Date June 1 Units Cost Inventory (beg.) 700 $8.00 June 3 Purchases 1,400 8.40 June 7 Sales (at $16 per unit) 980 952 9.00 June 20 Purchases June 22 Sales (at $16 per unit) 1,540 What is (a) ending inventory on June 30, and (b) cost of goods sold for June, using the FIFO inventory method? •Note: Do not use negative signs with any of your answers. •Note: List the inventory units in chronological order based on their purchase date with beginning inventory, if any, listed first.arrow_forwardExplain how solve 4x + 3 = 7 using the change of base formula logy: logy. Include the solution for x in your answer. Round your answer to the nearest thousandth. log barrow_forward5. Consider the following vectors 0.1 3.2 -0-0-0 = 5.4 6.0 = z= 3 0.1 For each of exercises a-e, either compute the desired quantity by hand with work shown or explain why the desired quantity is not defined. (a) 10x (b) 10-27 (c) J+Z (d) (x, y) (e) (x, z)arrow_forward
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