4) A ball is rolled toward the wall at a constant speed, bounces off of the wall and returns to the person who rolled the ball. The equation d = -2(t-4)³ + k gives the distance, d in feet, the ball is from the person who rolled it t seconds after first being rolled with an initial distance of k feet from the wall. Which equation, when solved for t gives the time it takes a ball to roll from an original distance of k feet to its current distance from the wall, d feet? (A) t = 4 + d-k -2 (B) t = 4+√-2(d-k) (C) t = 4 + 3d-k 2 3 (D) t = ³√d=k+ 4
4) A ball is rolled toward the wall at a constant speed, bounces off of the wall and returns to the person who rolled the ball. The equation d = -2(t-4)³ + k gives the distance, d in feet, the ball is from the person who rolled it t seconds after first being rolled with an initial distance of k feet from the wall. Which equation, when solved for t gives the time it takes a ball to roll from an original distance of k feet to its current distance from the wall, d feet? (A) t = 4 + d-k -2 (B) t = 4+√-2(d-k) (C) t = 4 + 3d-k 2 3 (D) t = ³√d=k+ 4
Transcribed Image Text:4) A ball is rolled toward the wall at a constant speed, bounces off of the wall and returns to the person who rolled the
ball. The equation d = -2(t-4)³ + k gives the distance, d in feet, the ball is from the person who rolled it t seconds
after first being rolled with an initial distance of k feet from the wall. Which equation, when solved for t gives the time
it takes a ball to roll from an original distance of k feet to its current distance from the wall, d feet?
(A) t = 4 +
(B) t = 4+√-2(d-k)
5) Pediatric doctors measure the length of children between birth and 36 months of age. The length of the average boy
(50th percentile) at x years of age is modeled by the equation: L = 7.5x¹/2 + 50, where length is measured in
centimeters and age is measured in months. Which equation is the equation for x which would give the predicted age
for a child L centimeters in length?
(A) x = (0.133L - 50)²
(B) x = (0.133L - 6.67)²
(C) x = (L-6.67)²
(D) x = (L-50)²
6) A glass of water is placed into a freezer to cool. The time, in t minutes, that it takes for the water to reach a
temperature of T degrees Fahrenheit after being placed in a 20-dep freezer is given by the equation
t = ln(T-20)-C, where C is the initial temperature of the water. Which equation below, when solved for T, would
give the temperature of the water if the initial temperature of the water and the time it has been in the freezer is
known?
d-k
-2
x =
22
w-21
(A) Tet+C + 20
(B) T =
t-C
In(20)
(C) Tet+C - 20
7) The population of a given city is modeled by the equation y = 213ex/66.7, where y is the population of that city x
years after the present year, measured in thousands of people. Solve the equation above for x.
(A) x = In (667)
(B) x = 66.7 In (23)
(C) x = 66.7 log()
(C) x =
(C) t = 4 +
w-21
30
-8
d-k
(D) x
(D) T =
8) The number of gallons of water in a tank, W, after t minutes is given by the equation W = 21 + 30
Which of the
following equations, when solved for x, would give the time it takes for the tank to have W gallons of water?
8+x
(B) x = 30(w-21)-8
30
w-21
9) A vase in the shape of a right circular cone is being filled with water. The volume of water in
the vase is based on how deep the water in the vase is filled to as shown in the graph below.
The formula for the volume of the vase for any depth, x, is given by V = r³.
(D) t =
Create the equation, when solved for r that would give the radius of the water's surface level
with a given volume of water in the vase.
In(20)
t-C
d-k
8
(66.7y
(D) x = log (5213)
+4
Volume (cubic cm)
depth (cm)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON