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Unformatted text preview: Mathematics 095
Semester One, 20072008
19 December 2007 F INAL EXAMINATION ' Instructor '
N Student Student Problem Points possible Points earned l 5
2 5
3 5
4 5
5
6 , 7
8
9
10 0 Show yOur work when doing computations. Even if your answer is correct, if you do not show
your work, you will receive zero credit. 6 Scientiﬁc calculators are allowed. But, graphing calculators and programmable calculators are
not allowed. 0 No notes.
0 No textbooks.  No interacting studentto—student.‘ I. True/False. Following these instructions, there are four statements. For each statement, if the statement is true, write the word Iru_e in the space provided at the left of the statement; otherwise,
if the statement is not true, write the word False in the space provided at the right of the statement. If you write the word 1% in some space at the right, you will be given zero credit; similarly, if you write
the word False in some space provided at the left, you will be given zero credit. (5 points each.) True False . 1. When written in scientiﬁc notation, 1219.2007 equals
1.2192007 x 107. 2. In relation to‘a set of numerical data with or without repetitions, when we add up the numbers and then divide by how many numbers there are,
the result we get is called the mode. 3. We are given the data 36, 30, 24, 26,*and 18. The median of that data
is greater than 25. 4. We are given the equation 3x + 5 = 4 (6 — x). 19/7 is the solution. II. Completions. Following these instructions, there are three incomplete statements. For each such
statement, in the space provided, put the letter of the correct answer. (10 points each.)
5. In the formula S = 47rr2, the variables are (a) S and r i (b) 1t and r (c) S and TE (d) None of (a), (b), or (c).
6. Suppose that we are given the algebraic expression 16x + 9y — 11y — 21x. When we combine like terms and then simplify, we get (a) 5x — 2y i (b) —5x'— 2y
(0) —5x + 2y (d) None of (a), (b), or (c).
7. An intemet shopping site received'the following numbers of inquiries of the last seven days: 869, 992, 482, 791, 399, 855, and 869. The median ofthis data is
(a) 791 (b) 855 (c) 869 ((1) None of (a), (b), or (c). III. Computations. To receive credit, here you must show your work. 8. Find the product of the two numbers 126 and 232. Then, write the product in
scientiﬁc notation. (15 points.)
Product Scientiﬁc notation. 9. Solve this equation for. the variable: 3x + 4 = 7x —12. _ (15 points.). 10. Solve this equation for the variable: —3x — 2 (x + 1) = 4 (x — l). (20 points.) 11. Perform the operation indicated: 3/8 + 5/14 + 13/16. State the answer as a mixed number with the
fractional part reduced ‘to lowest terms. . . (10 points.) Sum 12. 600 people were interviewed at the Big Dollar supermarket to see whether or not they liked the new
and improved recipe for F ingerLickin’ Chicken. 221 said that they liked it. Find the percent of people
who said that they liked it. State the answer to the nearest 1/ 100—th of a percent. (15 points.) Percent 13. Larry and Terry recently bonght a second—hand sofa. With a 65% discount, the selling price of the
sofa, the price of the sofa with the'discount, was $368.55. Find the exactlist price of the sofa, the price of .
the sofa'without the diScount; State the answer exactly in dollars and cents; ' ‘(15 points.) List price , 14. Lonnie and Ronnie have relatives who arranged for them to have one savings account. In that one
account, $7400 was deposited where it eams‘6 3/: % simple interest annually. No other deposits are ever
made to the account, and nothing is ever withdrawn from it. Find the exact amount in the account at the
end of 52 months. State the answer exactly in dollars and cents. 7 (20 points.) Amount in account 15. Bonnie and Connie plan to put carpet wallto—Wall in one of the rooms in their house. The ﬂoor of
the room has the shape of a rectangle. It is ll 1/2 feet wide and 19 2/3 feetlong. 'Find the exact amount
it will cost Bonnie and Connie to carpet their room if carpet costs $27.00 per square yard. State the
answer exactly in dollars and cents. ‘ A , “ p (20 points.) Cost of carpeting 16. We are given a right triangle whose legs measure, respi, 24 and 7 units.‘ The triangle is placed inside
a circle so that its vertices lie on the circle. Find the exact circumference and the exact area of the circle.
(20 points.) Circumference Area  ...
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 Fall '07
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 Math

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