AnswersAlgebraic ReasoningModeling Using Function Notation

Modeling Using Function Notation — Quiz Answers

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The function x times cap A is equal to square root of cap A over 6 end root can be used to determine the side length, x , of a cube given the surface area of the cube, cap A The function cap v times x is equal to x cubed can be used to find the volume of a cube. How can these functions be combined?

A
cap v times open paren x times cap A close paren is equal to square root of the fraction with numerator x cubed and denominator 6 end root
B
x times open paren v times cap A close paren is equal to square root of the fraction with numerator x cubed and denominator 6 end root
C
cap v times open paren x times cap A close paren is equal to open paren square root of cap A over 6 end root close paren cubed
D
x times open paren v times cap A close paren is equal to open paren square root of cap A over 6 end root close paren cubed
2
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One brand of coffee is packaged in cylinders where the height is equal to the radius, r The volume of the package, in cubic centimeters, can be found using the function cap v times r is equal to pi r cubed The number of ounces of coffee in the cylinder depends on the volume of the cylinder, cap v , in cubic centimeters. This can be modeled by the function cap c times cap v is equal to 3 point 2 cap v Which function can be used to find the number of ounces of coffee in the can based on its radius?

A
cap c times open paren cap v times r close paren is equal to square root of 3 point 2 pi r end root
B
cap c times open paren cap v times r close paren is equal to 32 point 7 6 8 pi r cubed
C
cap c times open paren cap v times r close paren is equal to 3 point 2 pi r cubed
D
cap c times open paren cap v times r close paren is equal to square root of 32768 pi r end root
3

A roller coaster starts with the cars being pulled up a ramp. The mass of the cars is estimated by the function m times p is equal to 175 p plus 1 comma 180 where p is the number of passengers in the car. The potential energy of the car is calculated using the function cap e times m is equal to 9 point 8 m h , where h is the height of the ramp. If the top of the ramp is 30 meters, which function can be used to calculate the potential energy of a car in terms of the number of passengers?

A
open paren cap e times open paren m times p close paren close paren is equal to 1 comma 715 p plus 1 comma 180
B
open paren cap e times open paren m times p close paren close paren is equal to 294 p plus 1 comma 180
C
open paren cap e times open paren m times p close paren close paren is equal to 51 comma 450 p plus 346 comma 920
D
open paren cap e times open paren m times p close paren close paren is equal to 51 comma 450 p plus 1 comma 180
5

City planners anticipate an 8 point 2 percent population growth per year, including new residents and births. The population, in millions of people, based on this increase can be modeled by the function p times x is equal to 2 point 5 times 1 point 0 8 2 to the x th power , where x is the number of years of tracked growth. The planners also estimate a 3 percent population loss over the same time period that can be modeled by the function cap l times p is equal to p times 0 point 9 7 to the x th power Which function represents cap l times open paren p times x close paren ?

A
cap l times open paren p times x close paren is equal to 2 point 5 times 2 point 0 5 2 to the x th power
B
cap l times open paren p times x close paren is equal to 2 point 4 2 5 times 0 point 1 1 2 to the x th power
C
cap l times open paren p times x close paren is equal to 2 point 4 2 5 times 1 point 0 8 2 to the x th power
D
cap l times open paren p times x close paren is equal to 2 point 5 times 1 point 0 4 9 5 4 to the x th power
7

The length of the string of a pendulum, cap l , can be determined using the function cap l times p is equal to 9 point 8 times open paren p over 2 pi close paren squared , where p is the period of the pendulum. The velocity at the bottom of the pendulum can be modeled by the function v times cap l is equal to square root of 19 point 6 liters Which function can be used to find the velocity at the bottom of the pendulum released from the same angle for any period, p ?

A
v times open paren cap l times p close paren is equal to square root of 192 point 0 8 p over 2 pi end root
B
v times open paren cap l times p close paren is equal to p over 2 pi square root of 192 point 0 8
C
v times open paren cap l times p close paren is equal to p over 2 pi square root of 19 point 6
D
v times open paren cap l times p close paren is equal to square root of 19 point 6 p over 2 pi end root
8

The function x times cap A is equal to square root of cap A over 6 end root can be used to determine the side length, x , of a cube given the surface area of the cube, cap A The function cap v times x is equal to x cubed can be used to find the volume of a cube. How can these functions be combined?

A
x times open paren v times cap A close paren is equal to open paren square root of cap A over 6 end root close paren cubed
B
cap v times open paren x times cap A close paren is equal to square root of the fraction with numerator x cubed and denominator 6 end root
C
cap v times open paren x times cap A close paren is equal to open paren square root of cap A over 6 end root close paren cubed
D
x times open paren v times cap A close paren is equal to square root of the fraction with numerator x cubed and denominator 6 end root
9

One brand of coffee is packaged in cylinders where the height is equal to the radius, r The volume of the package, in cubic centimeters, can be found using the function cap v times r is equal to pi r cubed The number of ounces of coffee in the cylinder depends on the volume of the cylinder, cap v , in cubic centimeters. This can be modeled by the function cap c times cap v is equal to 3 point 2 cap v Which function can be used to find the number of ounces of coffee in the can based on its radius?

A
cap c times open paren cap v times r close paren is equal to 3 point 2 pi r cubed
B
cap c times open paren cap v times r close paren is equal to square root of 32768 pi r end root
C
cap c times open paren cap v times r close paren is equal to 32 point 7 6 8 pi r cubed
D
cap c times open paren cap v times r close paren is equal to square root of 3 point 2 pi r end root

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