Math Assistance 2

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Math125Week8FinalExam.docx

The questions below are all multiple-choice, so work out your answers on a separate piece of paper and then select the correct choice. You can change your answer choices after selecting them. Good luck!

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1. Bart is building a fence that is 26.5 ft long. If he uses posts that are 6 inches wide and he places them 6 feet apart with one at each end, how many posts will he need?

1. 3

2. 4

3. 5

4. 6

5. 7

2. There is 1/4 of a pizza let. If you eat 1/4 of that, how much pizza will you have left?

1. 12

2. 34

3. 18

4. 316

5. 132

3. Let A = {1, 2, 3, 4} and B = {3, 4, 5, 6}, what is the union of sets A and B?

1. U = { }

2. U = {3}

3. U = {4}

4. U = {3, 4}

5. U = {1, 2, 3, 4, 5, 6}

4. If the perimeter of a rectangular building is 350 feet, and the length of one of the sides of the building is 50 feet long, what is the length of the other side?

1. 100

2. 125

3. 150

4. 250

5. 300

5. A car is on sale for $13,000. If the non-sale price of the car is $15,000, what is the percent discount on the sale?

1. 13%

2. 15%

3. 18%

4. 20%

5. 22%

6. If Cara spends $45 on a new pair of jeans that are on sale for 40% off, what is the original price of the jeans?

1. $63.00

2. $72.50

3. $75.00

4. $90.00

5. $112.50

7. Jenny borrows $8,000 to start a new e-commerce business. If she pays $600 per year in interest, what is the interest rate on the debt?

1. 4.80%

2. 5.25%

3. 6.45%

4. 7.50%

5. 8.15%

8. Anthony invests $1,000 in the stock market, and the value of the stock grows at an 8% rate for the next three years. What is the value of his investment after three years?

1. $1,080

2. $1,240

3. $1,260

4. $1,320

5. $1,380

9. Find the average daily balance in January. (Average daily balance is calculated based on end-of-day balance.) Balance on December 31: $500 Charge $451 on January 12 Charge $884 on January 17 Repay $1,635 on January 27

1. $200

2. $887

3. $955

4. $1,211

5. $1,835

10. If Ravi purchases a $200,000 house using a mortgage at 15-year mortgage at 75% LTV, and pays $1,200 per month, how much interest will he pay over the life of the loan?

1. $16,000

2. $24,000

3. $32,000

4. $48,000

5. $66,000

11. Convert 532 kilometers into miles. (1 mi = 1.6 km)

1. 333 miles

2. 384 miles

3. 413 miles

4. 522 miles

5. 851 miles

12. You’re getting ready for a trip to Europe. If the expected temperature is 15˚C, what is the expected temperature in Fahrenheit? (F = 95C + 32)

1. 44 ˚F

2. 49 ˚F

3. 53 ˚F

4. 59 ˚F

5. 65 ˚F

13. Find the length of side x in the right triangle.

https://www.limespring.com/release/bookexam/574/media/335071

1. 6

2. 8

3. 10

4. 12

5. 14

14. Find the length of side y.

https://www.limespring.com/release/bookexam/574/media/335078

1. 12

2. 14

3. 16

4. 18

5. 22

15. What is the measure of angle alpha?

https://www.limespring.com/release/bookexam/574/media/335085

1. 44

2. 46

3. 48

4. 52

5. 55

16. In a bakery, there are 8 bagels, 5 croissants, and 3 muffins. If a random pastry is selected, what is the probability that it’s a croissant?

1. 19%

2. 27%

3. 31%

4. 42%

5. 50%

17. Find the probability that the first card dealt off the top of a deck of cards is a spade or a 2. (There are thirteen spades and four 2’s in a 52-card deck of cards, including one 2 of spades.)

1. 25%

2. 28%

3. 31%

4. 33%

5. 37%

18. If a coin is flipped 5 times, what is the probability that the coin lands on tails every time?

1. 12

2. 14

3. 18

4. 116

5. 132

19. The temperatures during the first week of June are listed in the table below. What is the average temperature?

https://www.limespring.com/release/bookexam/574/media/335113

1. 53

2. 54

3. 55

4. 56

5. 57

20. The temperatures during the first week of June are listed in the table below. What is the median temperature?

https://www.limespring.com/release/bookexam/574/media/335120

1. 53

2. 54

3. 55

4. 56

5. 57

21. The temperatures during the first week of June are listed in the table below. What is the mode temperature?

https://www.limespring.com/release/bookexam/574/media/335127

1. 53

2. 54

3. 55

4. 56

5. 57

22. The temperatures during the first week of June are listed in the table below. What is the range of temperatures?

https://www.limespring.com/release/bookexam/574/media/335134

1. 49 - 55

2. 49 - 61

3. 54 - 61

4. 55 - 57

5. 55 - 61

23. The temperatures during the first week of June are listed in the table below. What is the standard deviation of the temperatures?

https://www.limespring.com/release/bookexam/574/media/335141

1. 3.1

2. 3.5

3. 3.8

4. 4.4

5. 4.8

24. What is the area under a normal distribution?

1. 0

2. 34%

3. 68%

4. 95%

5. 100%

25. If the mean age of the managers in company is 52 years with a standard deviation of 2.5 years, what is the probability that a randomly chosen manager will be within one standard deviation of the mean age? (Assume a normal distribution.)

1. 10%

2. 34%

3. 50%

4. 68%

5. 75%

26. If the mean age of the managers in company is 52 years with a standard deviation of 2.5 years, what is the probability that a randomly chosen manager will be between 54.5 and 57 years old? (Assume a normal distribution.)

1. 5%

2. 14%

3. 22%

4. 34%

5. 45%

27. If a phone company sends a random 4-digit number to customers to activate their phone, how many potential numbers are there?

1. 24

2. 216

3. 1,200

4. 1,640

5. 10,000

28. If a bank sends a random 5-digit number to customers for security, how many potential numbers are there if the bank only uses 1, 2 or 3 for the first digit and any number for the other four digits?

1. 2,000

2. 6,000

3. 15,400

4. 30,000

5. 49,000

29. How many different ways can Becky arrange 6 shirts in her closet?

1. 36

2. 108

3. 360

4. 720

5. 1,200

30. How many different ways can Davis select three pieces of fruit from a group of 7 pieces of fruit?

1. 18

2. 35

3. 64

4. 128

5. 260

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