17 Given the following function header:def count_types (1st: list[Any]) -> list[int]:Given a list of random types, return the number of occurrences ofeach type, in the form of a list, in the order that they were first seen.and given the following list of test cases (labelled TEST 1 through TEST 6):TEST 1: count types ([1)TEST 2: count_types(['abc'1)TEST 3: count_types ([1])TEST 4: count_types (['abc', 2.0, 3])TEST 5: count_types(['abc', ['cat']])TEST 6: count_types([3, 2, 2.e, 3.0])Identify any tests which duplicate cases tested earlier in the list.For example, if TEST 3 duplicates something TEST 1 or TEST 2 have done, then select TEST 3 (as it has a duplicate test case).O TEST 1O TEST 2TEST 3TEST 4TEST 5O TEST 6

Test 1 : contain empty list so, it cannot have duplicate test cases. Test 2: contain single element…

Given the following function header: def count_types(1st: list[Any]) -> list[int]: Given a list of random types, return the number of occurrences of each type, in the form of a list, in the order that they were first seen. and given the following list of test cases (labelled TEST 1 through TEST 6): TEST 1: count_types([]) TEST 2: count_types(['abc']) TEST 3: count_types([1]) TEST 4: count_types(['abc', 2.8, 31) TEST 5: count_types(['abc', ['cat'11) TEST 6: count_types([3, 2, 2.e, 3.0]) Identify any tests which duplicate cases tested earlier in the list. For example, if TEST 3 duplicates something TEST 1 or TEST 2 have done, then select TEST 3 (as it has a duplicate test case). O TEST 1 O TEST 2 TEST 3 O TEST 4 O TEST 5 O TEST 6

Given the following function header: def count_types(1st: list[Any]) -> list[int]: Given a list of random types, return the number of occurrences of each type, in the form of a list, in the order that they were first seen. and given the following list of test cases (labelled TEST 1 through TEST 6): TEST 1: count_types([]) TEST 2: count_types(['abc']) TEST 3: count_types([1]) TEST 4: count_types(['abc', 2.8, 31) TEST 5: count_types(['abc', ['cat'11) TEST 6: count_types([3, 2, 2.e, 3.0]) Identify any tests which duplicate cases tested earlier in the list. For example, if TEST 3 duplicates something TEST 1 or TEST 2 have done, then select TEST 3 (as it has a duplicate test case). O TEST 1 O TEST 2 TEST 3 O TEST 4 O TEST 5 O TEST 6

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Subject : theory of computer science Answer Q. 47 only
37, 38
2. RADIOACTIVE DECAY, REVISITED This is a modified version of chapter 1 problem 4 in your textbook. Consider the radioactive decay of nuclei A into nuclei B, which can then also decay. The numbers of each species as a function of time are given by N₁ (t) and NB (t), and the decay of each species is governed by¹: dNA dt == NA dNB NA NB = dt ΤΑ TB where T and T are the decay time constants for each type of nucleus.
The liquid-liquid extraction process carried out at the Electrochemical Materials Laboratory involves the extraction of nickel (Ni) from the liquid phase into an organic phase. Data from laboratory experiments are given in the table below. Ni phase cair, a (gr/l) 2 2,5 3 Ni phase organik, g (gr/l) 8,57 10 12 Assume that a is the amount of Ni in the liquid phase, and g is the amount of Ni in the organic phase. Quadratic interpolation is used to estimate the value of g, which is given by the following formula: g = x1a? + x2a + x3 a. Find three simultaneous equations based on the data given by the experimental results. b. Use the Gauss Elimination method to get the values of x1, x2 and x3 and then estimate the amount of Ni in the organic phase, if 2.3 g/l of Ni is available in the liquid phase. c. Use the LU Decomposition method to get the values of x1, x2 and x3. and then estimate the amount of Ni in the organic phase, if 2.3 g/l of Ni is available in the liquid phase.
please do 4) and 5)
Only 17
13 to 15
fig 8.3 incldued
5:10 Question 4 of 15 .5G Which of the following describes the entropy change in the given reaction? 2 Cl₂O(g) → 2 Cl₂(g) + 7 O₂(g) Submit A) The entropy change is negative because a larger molecule (Cl₂O₂) is converted into two smaller molecules (Cl₂ and O₂). B) The entropy change is zero because the reactants and products are all gases. C) The entropy change cannot be determined because the temperature is not specified. D) The entropy change is negative because there are more moles of products than reactants. Tap here or pull up for additional resources E) The entropy change is positive because there are more moles of products than reactants.
4 and 5
Parts of questions 1 to be solved:-
Please answer ONLY parts B, C, and D.