AnswersDCSS Advanced Algebra CR 24-25Unit Test

Unit Test — Unit test Answers

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The Watkins family is trying to decide which kind of in-ground pool to install. They are determining whether to put in a saltwater pool or a basic chlorine pool. The graphs below model the average annual cost of owning each type of pool after t years. If the family plans to move to their retirement home in 10 years, which pool would be more cost effective to install? How do you know?

Question illustration
A
The chlorine pool is more cost effective because the y-value at 10 years is less on graph B than it is on graph A.
B
The saltwater pool is more cost effective because the y-value at 10 years is less on graph A than it is on graph B.
C
They would be equally cost effective because the vertical asymptotes for each graph are the same.
D
They would be equally cost effective because the horizontal asymptotes for each graph are the same.
22
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What is the quotient?

Question illustration
A
Two-thirds
Option A
B
Three-halves
Option B
C
StartFraction (n + 3) squared Over 6 (n minus 3) squared EndFraction
Option C
D
StartFraction 6 (n minus 3) squared Over (n + 3) squared EndFraction
Option D
23

The function yields the average cost in dollars for a company to produce x copies of a comic book. Which statement best fits the situation modeled by the function?

Question illustration
A
The company earns 20% of the issue price as profit from each copy sold.
B
The company earns 20 cents as profit from each copy sold.
C
The company spends 20% of the issue price on materials to produce each copy.
D
The company spends 20 cents on materials to produce each copy.
24

Which expression is equivalent to ?

Question illustration
A
StartFraction 2 a Over (2 a minus 1) squared EndFraction
Option A
B
StartFraction 50 a Over (2 a + 1) squared EndFraction
Option B
C
StartFraction (2 a minus 1) squared Over 2 a EndFraction
Option C
D
StartFraction (2 a + 1) squared Over 50 a EndFraction
Option D
25

The function yields the average cost in dollars for a company to produce x calendars. Which statement best fits the situation modeled by the function?

Question illustration
A
The company spends $600 on a new computer and printer before beginning the project.
B
The company takes 600 photos before selecting which ones to use for its calendars.
C
The company expects to sell 600 calendars each month.
D
The company will sell the calendars for $2.00 each.

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