How many possible area codes are there in the United States? (Be sure to remove 411, 800,900, and 911 as they are used for other purposes.)

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A: Let us test the convergence of the series using Ratio Test in the next step.

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Q: 4. Let ƒ : R → R be integrable with respect to the Lebesgue measure. Show that the function g: [0,…

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Q: 1. Five years after purchase, the auditor of a newspaper company estimates the value printing press…

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A: We have to prove  a) ¬∃x∈X : ∀y∈Y : Ex, y=∀x∈X : ∃y∈Y : ¬Ex, y b) ¬∀x∈X : ∃y∈Y : Ex, y=∃x∈X : ∀y∈Y :…

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Q: Are you 100% sure about the answer? Also, can you rewrite it in neat handwriting please!

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Q: (ii) Using (i) evaluate in terms of x. (i) Use a suitable u to prove that S cos √x = 2 = 2 fue S u…

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A: please comment if you need any clarification. If you find my answer useful please put thumbs up.…

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Q: 81) Find the height of a moving box if its length is 32 in, its width is 26 in., and its surface…

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Q: 12. asta Menu tem teak T almo any, should be adjusted or removed. Number Menu Sold hicke aesar 1…

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Q: Let A,X EM, (C) such that A is positive semidefinit and AX = XA Show that A¹/2X = XA¹/2.

A: Introduction: Definite matrix is significant in studying quadratic forms. Also, in Lyapunov…

Q: assigns each element in the domain to a unique element in the range.

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Q: 2. SOLVE STEP BY STEP IN DIGITAL FORMAT ifferentiate the following function and name each property…

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Q: Compute the 35th percentile, the 55th percentile, Q₁, Q2, and Q3 for the following data. 14 26 28 11…

A: Sol:- P35 The percentile no. p is a value such that at least p percent of the observations is less…

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A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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Q: Exercise 5. Consider the function f(x, y) = sin(xy), 0≤x≤ π,0 ≤ y ≤ 1. find local maximum and…

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A: Given information fa : ℝ→ℝ  : x→x+1 -22-x +a Sa =  x∈ℝ : fax =0  P =  a∈R : Sa = ϕ Qa =  x∈ℝ : fax…

Q: Corollary 2.53 Let (M, d) be a metric space and KC M. The following statements are equivalent: (i) K…

A: Disclaimer:  Since you have asked multiple question, we will solve the first question for you. If…

Q: Prove that for all sets A and B and nEZ, n ≥ 1, the following holds: 72 11 (a) U(A\B) = (UA) \ B;…

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