Final Exam (page 2 of 2) PDF

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Anas Haj Sakor

Home  My courses  MATH 1201 - AY2021-T5  Final Exam (Days 1 - 4)  Final Exam (Proctored)

Question 11

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What is the exact value of sin (120 degrees)? Select one: a. ½ b. .866 c. √3/2 d. -1/2 e. None of these Clear my choice

Question 12

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What are the possible rational roots of f(x) = x -7x + 8? Select one: a. {8} b. {+-1, +-2, +-7, +-8} c. {+-1, +-2,+-8} d. {+-1, +-8} e. {+-1, +-2, +-4, +-8} Clear my choice

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Question 13

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The half-life of carbon 14 is 5,730 years. Approximately, how old is a bone that has 70% of its original carbon 14? Select one: a. 7,500 years b. 7,000 years c. 6,500 years d. 6,000 years e. Less than 6,000 years Clear my choice

Question 14

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x

Solve for x: (1/2)  = 16 Select one: a. -4 b. -2 c. 2 d. 4 e. None of these Clear my choice

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Question 15

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2

What is the vertex of f(x) = x + 4x + 2? Select one: a. (2, 2) b. (– 2, – 2) c. (– 2, 2) d. (2, – 2) e. None of these Clear my choice

Question 16

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x

Solve for x: (1/3) = 81 Select one: a. 4 b. –2 c. 3 d. –4 e. None of these Clear my choice

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Question 17

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If f(x) = 3x + 2 and g(x) = x – 4, (g/f)(1) is: Select one: a. Undened b. –3/5 c. –5/3 d. 3/5 e. 5/3 Clear my choice

Question 18

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How much must be invested today at 10 %, compounded continuously, to be worth $165,000 in 5 years? Pick the closest answer. [Use e = 2.71] Select one: a. $150,000 b. $130,000 c. $110,000 d. $100,000 e. No amount will be enough Clear my choice

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Question 19

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If an ant is 50 feet away from a tree growing straight up, and the ant has to look up at an angle of 70 degrees to see the top of the tree, how tall is the tree? Select the closest answer. Select one: a. 20 feet b. 50 feet c. 1,400 feet d. 140 feet e. 1,000 feet Clear my choice

Question 20

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If f(x) = 3x +2 and g(x) = x -4, (f/g)(4) is: Select one: a. Undened b. 0 c. 14 d. (3, 2, 4) e. None of these Clear my choice

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