
Mathematical Ideas (13th Edition) - Standalone book
13th Edition
ISBN: 9780321977076
Author: Charles D. Miller, Vern E. Heeren, John Hornsby, Christopher Heeren
Publisher: PEARSON
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Textbook Question
Chapter 5.4, Problem 26E
Use the Euclidean algorithm to find the greatest common factor of each group of numbers.
72 and 90
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2) Suppose you start with $60 and increase this amount by 15%. Since 15% of $60 is $9,
that means you increase your $60 by $9, so you now have $69. Notice that we did this
calculation in two steps: first we multiplied $60 by 0.15 to find 15% of $60, then we
added this amount to our original $60. Explain why it makes sense that increasing $60 by
15% can also be accomplished in one step by multiplying $60 times 1.15.
3) Suppose you have $60 and want to decrease this amount by 15%. Since 15% of $60 is $9,
that means you will decrease your $60 by $9, so you now have $51. Notice that we did this
calculation in two steps: first we multiplied $60 by 0.15 to find 15% of $60, then we
subtracted this amount from our original $60. Explain why it makes sense that decreasing
$60 by 15% can also be accomplished in one step by multiplying $60 times 0.85.
4) In the Read and Study section, we noted that the population in Colony B is increasing each
year by 25%. Which other colony in the Class Activity…
Suppose an experiment was conducted to compare the mileage(km) per litre
obtained by competing brands of petrol I,II,III. Three new Mazda, three new
Toyota and three new Nissan cars were available for experimentation. During the
experiment the cars would operate under same conditions in order to eliminate
the effect of external variables on the distance travelled per litre on the assigned
brand of petrol. The data is given as below:
Brands of Petrol Mazda Toyota Nissan
I 10.6 12.0 11.0
II 9.0 15.0 12.0
III 12.0 17.4 13.0
(a) Test at the 5% level of significance whether there are signi
cant differences among the brands of fuels and also among the cars. [10]
(b) Compute the standard error for comparing any two fuel brands means. Hence
compare, at the 5% level of significance, each of fuel brands II, and III with
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Chapter 5 Solutions
Mathematical Ideas (13th Edition) - Standalone book
Ch. 5.1 - Decide whether each statement is true or false
1....Ch. 5.1 - Decide whether each statement is true or false. If...Ch. 5.1 - Decide whether each statement is true or false....Ch. 5.1 - Prob. 4ECh. 5.1 - Prob. 5ECh. 5.1 - Prob. 6ECh. 5.1 - Decide whether each statement is true or false.
7....Ch. 5.1 - Prob. 8ECh. 5.1 - Prob. 9ECh. 5.1 - Find all natural number factors of each...
Ch. 5.1 - Find all natural number factors of each number. 28Ch. 5.1 - Find all natural number factors of each number. 72Ch. 5.1 - Use divisibility tests to decide whether the given...Ch. 5.1 - Use divisibility tests to decide whether the given...Ch. 5.1 - Use divisibility tests to decide whether the given...Ch. 5.1 - Prob. 16ECh. 5.1 - (a) In constructing the Sieve of Eratosthenes for...Ch. 5.1 - (a) Continue the Sieve of Eratosthenes in Table 1...Ch. 5.1 - In your list for Exercise 18(a). consider the six...Ch. 5.1 - Prob. 20ECh. 5.1 - Prob. 21ECh. 5.1 - Prob. 22ECh. 5.1 - Prob. 23ECh. 5.1 - Prob. 24ECh. 5.1 - Prob. 25ECh. 5.1 - Prob. 26ECh. 5.1 - Prob. 27ECh. 5.1 - Find the prime factorization of each composite...Ch. 5.1 - Prob. 29ECh. 5.1 - Prob. 30ECh. 5.1 - Here is a divisibility test for 7.
(a) Double the...Ch. 5.1 - Here is a divisibility test for 7. (a)Double the...Ch. 5.1 - Prob. 33ECh. 5.1 - Prob. 34ECh. 5.1 - Here is a divisibility test for 11. (a) Starting...Ch. 5.1 - Prob. 36ECh. 5.1 - Here is a divisibility test for 11.
(a) Starting...Ch. 5.1 - Prob. 38ECh. 5.1 - 39. Consider the divisibility test for the...Ch. 5.1 - 40. Give two factorizations of the number 75 that...Ch. 5.1 - Prob. 41ECh. 5.1 - Determine all possible digit replacements for x so...Ch. 5.1 - Determine all possible digit replacements for x so...Ch. 5.1 - Determine all possible digit replacements for x so...Ch. 5.1 - Prob. 45ECh. 5.1 - Prob. 46ECh. 5.1 - Prob. 47ECh. 5.1 - Prob. 48ECh. 5.1 - Prob. 49ECh. 5.1 - Prob. 50ECh. 5.1 - Leap years occur when the year number is divisible...Ch. 5.1 - Prob. 52ECh. 5.1 - Prob. 53ECh. 5.1 - Leap years occur when the year number is divisible...Ch. 5.1 - Prob. 55ECh. 5.1 - Prob. 56ECh. 5.1 - Prob. 57ECh. 5.1 - 58. Choose any 6-digit number consisting of three...Ch. 5.1 - One of the authors has three sons who were born....Ch. 5.1 -
Ore of the authors has three sons who were born,...Ch. 5.1 - Prob. 61ECh. 5.1 - Prob. 62ECh. 5.2 - In Exercises 1-6 decide whether each statement is...Ch. 5.2 - In Exercises 1-6 decide whether each statement is...Ch. 5.2 - In Exercises 1-6 decide whether each statement is...Ch. 5.2 - Prob. 4ECh. 5.2 - In Exercises 1-6 decide whether each statement is...Ch. 5.2 - Prob. 6ECh. 5.2 - Prob. 7ECh. 5.2 - Prob. 8ECh. 5.2 - Prob. 9ECh. 5.2 - Prob. 10ECh. 5.2 - Prob. 11ECh. 5.2 - Prob. 12ECh. 5.2 - Prob. 13ECh. 5.2 - Prob. 14ECh. 5.2 - 15. (a) Evaluate the Fermat number for .
(b) In...Ch. 5.2 - 16. (a) Verify the value given in the text for the...Ch. 5.2 - Prob. 17ECh. 5.2 - Prob. 18ECh. 5.2 - 19. Why do you suppose it normally takes up to a...Ch. 5.2 - Prob. 20ECh. 5.2 - Prob. 21ECh. 5.2 - 22. Explain n your own words the proof by Euclid...Ch. 5.2 - 23. For the composite number , find
Ch. 5.2 - Prob. 24ECh. 5.2 - Prob. 25ECh. 5.2 - Prob. 26ECh. 5.2 - Prob. 27ECh. 5.2 - Prob. 28ECh. 5.2 - Explain why large prime numbers are important in...Ch. 5.2 - 30. Describe the difference between Mersenne...Ch. 5.3 - In Exercises 1-10 decide whether each statement is...Ch. 5.3 - Prob. 2ECh. 5.3 - In Exercises 1-10 decide whether each statement is...Ch. 5.3 - In Exercises 1-10 decide whether each statement is...Ch. 5.3 - Prob. 5ECh. 5.3 - In Exercises 1-10 decide whether each statement is...Ch. 5.3 - In Exercises 1-10 decide whether each statement is...Ch. 5.3 - Prob. 8ECh. 5.3 - Prob. 9ECh. 5.3 - Prob. 10ECh. 5.3 - Prob. 11ECh. 5.3 - Prob. 12ECh. 5.3 - Prob. 13ECh. 5.3 - Prob. 14ECh. 5.3 - It has been proved that the reciprocals of all the...Ch. 5.3 - Prob. 16ECh. 5.3 - Prob. 17ECh. 5.3 - Prob. 18ECh. 5.3 - Prob. 19ECh. 5.3 - Prob. 20ECh. 5.3 - 21. There are four abundant numbers between 1 and...Ch. 5.3 - Prob. 22ECh. 5.3 - Prob. 23ECh. 5.3 - Prob. 24ECh. 5.3 - 25. The proper divisors of 1184 are 1.2. 4. 8, 16,...Ch. 5.3 - Prob. 26ECh. 5.3 - Prob. 27ECh. 5.3 - Prob. 28ECh. 5.3 - Prob. 29ECh. 5.3 - Prob. 30ECh. 5.3 - Prob. 31ECh. 5.3 - Prob. 32ECh. 5.3 - Prob. 33ECh. 5.3 - Prob. 34ECh. 5.3 - Prob. 35ECh. 5.3 - Prob. 36ECh. 5.3 - Prob. 37ECh. 5.3 - Prob. 38ECh. 5.3 - The first four perfect numbers were identified in...Ch. 5.3 - Prob. 40ECh. 5.3 - Prob. 41ECh. 5.3 - Prob. 42ECh. 5.3 - Prob. 43ECh. 5.3 - Prob. 44ECh. 5.3 - Prob. 45ECh. 5.3 - Prob. 46ECh. 5.3 - 47. Explain why the primorial formula does not...Ch. 5.3 - Prob. 48ECh. 5.3 - 49. Choose the correct completion: The primorial...Ch. 5.3 - Prob. 50ECh. 5.3 - Prob. 51ECh. 5.3 - Prob. 52ECh. 5.3 - Prob. 53ECh. 5.3 - Prob. 54ECh. 5.3 - Prob. 55ECh. 5.3 - Prob. 56ECh. 5.3 - Prob. 57ECh. 5.3 - Prob. 58ECh. 5.3 - Prob. 59ECh. 5.3 - Prob. 60ECh. 5.3 - Prob. 61ECh. 5.3 - Prob. 62ECh. 5.3 - Prob. 63ECh. 5.3 - Prob. 64ECh. 5.3 - Prob. 65ECh. 5.3 - Prob. 66ECh. 5.3 - Prob. 67ECh. 5.3 - Prob. 68ECh. 5.4 - Decide whether each statement is true or false. No...Ch. 5.4 - Decide whether each statement is true or false.
2....Ch. 5.4 - Decide whether each statement is true or false. If...Ch. 5.4 - Decide whether each statement is true or false.
4....Ch. 5.4 - Decide whether each statement is true or false....Ch. 5.4 - Decide whether each statement is true or false....Ch. 5.4 - Decide whether each statement is true or false....Ch. 5.4 - Decide whether each statement is true or false....Ch. 5.4 - Decide whether each statement is true or false.
9....Ch. 5.4 - Decide whether each statement is true or false....Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the prime factors method to find the greatest...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the Euclidean algorithm to find the greatest...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the prime factors method to find the least...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the method of dividing by prime factors to...Ch. 5.4 - Use the formula given in the text on page 203and...Ch. 5.4 - Use the formula given in the text on page 203 and...Ch. 5.4 - Use the formula given in the text on page 203 and...Ch. 5.4 - Use the formula given in the text on page 203 and...Ch. 5.4 - Use the formula given in the text on page 203 and...Ch. 5.4 - Use the formula given in the text on page 203 and...Ch. 5.4 - Explain in your own words how to find the greatest...Ch. 5.4 - 48, Explain in your own words how to find the...Ch. 5.4 - If p. q, and r and different primes, and a. b, and...Ch. 5.4 - Find (a) the greatest common factor and (b) the...Ch. 5.4 - Prob. 51ECh. 5.4 - Prob. 52ECh. 5.4 - Prob. 53ECh. 5.4 - It is possible to extend the Euclidean algorithm...Ch. 5.4 - Prob. 55ECh. 5.4 - Suppose that the least common multiple of p and q...Ch. 5.4 - Prob. 57ECh. 5.4 - Prob. 58ECh. 5.4 - Prob. 59ECh. 5.4 - Refer to Examples 9 and 10 to solve each problem....Ch. 5.4 - Refer to Examples 9 and 10 to solve each...Ch. 5.4 - Refer to Examples 9 and 10 to solve each...Ch. 5.4 - Prob. 63ECh. 5.4 - Refer to Examples 9 and 10 to solve each problem....Ch. 5.5 - Answer each question concerning the Fibonacci...Ch. 5.5 - Prob. 2ECh. 5.5 - Prob. 3ECh. 5.5 - Prob. 4ECh. 5.5 - Prob. 5ECh. 5.5 - Prob. 6ECh. 5.5 - Prob. 7ECh. 5.5 - Prob. 8ECh. 5.5 - Prob. 9ECh. 5.5 - Prob. 10ECh. 5.5 - Prob. 11ECh. 5.5 - Prob. 12ECh. 5.5 - Prob. 13ECh. 5.5 - Prob. 14ECh. 5.5 - Prob. 15ECh. 5.5 - It has been shown that if m divides n, then Fm is...Ch. 5.5 - Prob. 17ECh. 5.5 - Prob. 18ECh. 5.5 - Prob. 19ECh. 5.5 - Prob. 20ECh. 5.5 - Prob. 21ECh. 5.5 - Prob. 22ECh. 5.5 - Prob. 23ECh. 5.5 - Prob. 24ECh. 5.5 - Prob. 25ECh. 5.5 - Prob. 26ECh. 5.5 - Prob. 27ECh. 5.5 - Recall (lie Pythagorean theorem from geometry: If...Ch. 5.5 - Recall (lie Pythagorean theorem from geometry: If...Ch. 5.5 - Prob. 30ECh. 5.5 - Prob. 31ECh. 5.5 - Prob. 32ECh. 5.5 - Prob. 33ECh. 5.5 - Prob. 34ECh. 5.5 - Prob. 35ECh. 5.5 - Prob. 36ECh. 5 - In Exercises 1-6, decide whether each statement is...Ch. 5 - In Exercises 1-6, decide whether each statement is...Ch. 5 - Prob. 3TCh. 5 - In Exercises 1-6, decide whether each statement is...Ch. 5 - Prob. 5TCh. 5 - Prob. 6TCh. 5 - Use divisibility tests to determine whether the...Ch. 5 - Prob. 8TCh. 5 - Prob. 9TCh. 5 - Prob. 10TCh. 5 - Prob. 11TCh. 5 - Prob. 12TCh. 5 - Give a pair of twin primes between 60 and 80.Ch. 5 - Prob. 14TCh. 5 - Prob. 15TCh. 5 - Prob. 16TCh. 5 - Prob. 17TCh. 5 - Prob. 18TCh. 5 - Prob. 19TCh. 5 - Prob. 20TCh. 5 - 21. Choose any term after the first in the...Ch. 5 - 22. Which one of the following is the exact value...
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