Math 21
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Question 1 of 8
1. Question
Question 1:
If a=12 and b=3, what is the value of (2a+4b)/(ab)?
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Question 2 of 8
2. Question
Question 2:
Which of the following is a factored form of the expression 16x^{4} – 49y^{8}?
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Question 3 of 8
3. Question
Question 3:
The height, h, of an object in feet above the ground is given by the function h(t) = 3t^{2} + 20t, where t represents time, in seconds. How many feet above the ground is the object after 5 seconds?
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Question 4 of 8
4. Question
Question 4:
(2x^{3})^{5} is equivalent to:
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Question 5 of 8
5. Question
Question 5:
Given a rectangular prism with its dimensions 12 feet by 8 feet by 4 feet, what is the prism’s total surface area, in square feet?
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Question 6 of 8
6. Question
Question 6:
Given the diagram shown, how long is segment AC?
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Question 7 of 8
7. Question
Question 7:
[NonCalculator] To rake leaves, Tony charges $16 for equipment and $7.50 per hour he spends raking leaves. Buster charges a fee of $14 for equipment and $8 for every hour spent raking leaves. If h represents the hours spent raking leaves, what are all values of h that Tony’s total charge is greater than Buster’s?
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Question 8 of 8
8. Question
Question 8:
[NonCalculator] The Office of Planning Maintenance in San Francisco estimates the city’s population will decrease by 8 percent every 15 years. If the present population is 837,442, which of the following represents the office’s estimate of the population of the city t years from now?
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