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Math Algebra College Algebra Essentials

The speed of the motorist, if the average speed for the round trip is at least, if The distance from home to the event is 200 miles and the average speed for the trip to the event is 50 mph and the average speed should be at least 60 mph. The speed S is given by S = 2 d d r 1 + d r 2 , where r 1 and r 2 are the rates of speed for initial and return trips.

The speed of the motorist, if the average speed for the round trip is at least, if The distance from home to the event is 200 miles and the average speed for the trip to the event is 50 mph and the average speed should be at least 60 mph. The speed S is given by S = 2 d d r 1 + d r 2 , where r 1 and r 2 are the rates of speed for initial and return trips.

College Algebra Essentials

College Algebra Essentials

1st Edition

ISBN: 9780078035616

Author: Julie Miller

Publisher: MCG

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Question

Chapter 3.6, Problem 90PE

(a)

To determine

To Calculate: The speed of the motorist, if the average speed for the round trip is at least, if The distance from home to the event is 200 miles and the average speed for the trip to the event is 50 mph and the average speed should be at least 60 mph. The speed S is given by

S=2ddr1+dr2, where r1 and r2 are the rates of speed for initial and return trips.

(b)

To determine

To Calculate: To check whether the average speed of the motorist will be under 70 mph or not, if the distance from home to the event is 200 miles and the average speed for the trip to the event is 50 mph and the average speed should be at least 60 mph.

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Chapter 3.6, Problem 89PE

Chapter 3.6, Problem 91PE

Chapter 3 Solutions

College Algebra Essentials

Ch. 3.1 - Prob. 1SP Ch. 3.1 - Prob. 2SP Ch. 3.1 - Prob. 3SP Ch. 3.1 - Prob. 4SP Ch. 3.1 - Prob. 5SP Ch. 3.1 - Prob. 6SP Ch. 3.1 - Prob. 1PE Ch. 3.1 - Prob. 2PE Ch. 3.1 - Prob. 3PE Ch. 3.1 - Prob. 4PE

Ch. 3.1 - Prob. 5PE Ch. 3.1 - Prob. 6PE Ch. 3.1 - Prob. 7PE Ch. 3.1 - Prob. 8PE Ch. 3.1 - Prob. 9PE Ch. 3.1 - Prob. 10PE Ch. 3.1 - Prob. 11PE Ch. 3.1 - Prob. 12PE Ch. 3.1 - Prob. 13PE Ch. 3.1 - Prob. 14PE Ch. 3.1 - Prob. 15PE Ch. 3.1 - Prob. 16PE Ch. 3.1 - Prob. 17PE Ch. 3.1 - Prob. 18PE Ch. 3.1 - Prob. 19PE Ch. 3.1 - Prob. 20PE Ch. 3.1 - Prob. 21PE Ch. 3.1 - Prob. 22PE Ch. 3.1 - Prob. 23PE Ch. 3.1 - Prob. 24PE Ch. 3.1 - Prob. 25PE Ch. 3.1 - Prob. 26PE Ch. 3.1 - Prob. 27PE Ch. 3.1 - Prob. 28PE Ch. 3.1 - Prob. 29PE Ch. 3.1 - For Exercises 2730, a. State whether the graph of...Ch. 3.1 - Prob. 31PE Ch. 3.1 - Prob. 32PE Ch. 3.1 - Prob. 33PE Ch. 3.1 - Prob. 34PE Ch. 3.1 - Prob. 35PE Ch. 3.1 - A long jumper leaves the ground at an angle of 20...Ch. 3.1 - Prob. 37PE Ch. 3.1 - Prob. 38PE Ch. 3.1 - Prob. 39PE Ch. 3.1 - Prob. 40PE Ch. 3.1 - Prob. 41PE Ch. 3.1 - Prob. 42PE Ch. 3.1 - Prob. 43PE Ch. 3.1 - Prob. 44PE Ch. 3.1 - Prob. 45PE Ch. 3.1 - Prob. 46PE Ch. 3.1 - Prob. 47PE Ch. 3.1 - Prob. 48PE Ch. 3.1 - Prob. 49PE Ch. 3.1 - Prob. 50PE Ch. 3.1 - For Exercises 4952, given a quadratic function...Ch. 3.1 - Prob. 52PE Ch. 3.1 - Prob. 53PE Ch. 3.1 - Prob. 54PE Ch. 3.1 - Prob. 55PE Ch. 3.1 - Prob. 56PE Ch. 3.1 - Prob. 57PE Ch. 3.1 - Prob. 58PE Ch. 3.1 - Prob. 59PE Ch. 3.1 - Prob. 60PE Ch. 3.1 - Prob. 61PE Ch. 3.1 - Prob. 62PE Ch. 3.1 - Prob. 63PE Ch. 3.1 - Prob. 64PE Ch. 3.1 - Prob. 65PE Ch. 3.1 - Prob. 66PE Ch. 3.1 - Prob. 67PE Ch. 3.1 - Prob. 68PE Ch. 3.1 - Prob. 69PE Ch. 3.1 - Prob. 70PE Ch. 3.1 - Prob. 71PE Ch. 3.1 - Prob. 72PE Ch. 3.1 - Prob. 73PE Ch. 3.1 - Prob. 74PE Ch. 3.1 - Prob. 75PE Ch. 3.1 - Prob. 76PE Ch. 3.1 - Prob. 77PE Ch. 3.1 - Prob. 78PE Ch. 3.1 - Prob. 79PE Ch. 3.1 - Prob. 80PE Ch. 3.2 - Prob. 1SP Ch. 3.2 - Prob. 2SP Ch. 3.2 - Prob. 3SP Ch. 3.2 - Prob. 4SP Ch. 3.2 - Prob. 5SP Ch. 3.2 - Prob. 6SP Ch. 3.2 - Prob. 7SP Ch. 3.2 - Prob. 1PE Ch. 3.2 - Prob. 2PE Ch. 3.2 - Prob. 3PE Ch. 3.2 - Prob. 4PE Ch. 3.2 - Prob. 5PE Ch. 3.2 - Prob. 6PE Ch. 3.2 - Prob. 7PE Ch. 3.2 - Prob. 8PE Ch. 3.2 - Prob. 9PE Ch. 3.2 - Prob. 10PE Ch. 3.2 - Prob. 11PE Ch. 3.2 - Prob. 12PE Ch. 3.2 - Determine if the statement is true or false. 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Prob. 30PE Ch. 3.3 - Prob. 31PE Ch. 3.3 - Prob. 32PE Ch. 3.3 - For Exercises 3134, consider the division of two...Ch. 3.3 - Prob. 34PE Ch. 3.3 - Prob. 35PE Ch. 3.3 - Prob. 36PE Ch. 3.3 - Prob. 37PE Ch. 3.3 - Prob. 38PE Ch. 3.3 - Prob. 39PE Ch. 3.3 - Prob. 40PE Ch. 3.3 - Prob. 41PE Ch. 3.3 - Prob. 42PE Ch. 3.3 - Prob. 43PE Ch. 3.3 - Prob. 44PE Ch. 3.3 - Prob. 45PE Ch. 3.3 - Prob. 46PE Ch. 3.3 - Prob. 47PE Ch. 3.3 - Prob. 48PE Ch. 3.3 - Prob. 49PE Ch. 3.3 - Prob. 50PE Ch. 3.3 - Prob. 51PE Ch. 3.3 - Prob. 52PE Ch. 3.3 - Prob. 53PE Ch. 3.3 - Prob. 54PE Ch. 3.3 - Prob. 55PE Ch. 3.3 - For Exercises 5158. use the remainder theorem to...Ch. 3.3 - Prob. 57PE Ch. 3.3 - Prob. 58PE Ch. 3.3 - Prob. 59PE Ch. 3.3 - Prob. 60PE Ch. 3.3 - Prob. 61PE Ch. 3.3 - Prob. 62PE Ch. 3.3 - Prob. 63PE Ch. 3.3 - Prob. 64PE Ch. 3.3 - Prob. 65PE Ch. 3.3 - Prob. 66PE Ch. 3.3 - Prob. 67PE Ch. 3.3 - Prob. 68PE Ch. 3.3 - Prob. 69PE Ch. 3.3 - Prob. 70PE Ch. 3.3 - Prob. 71PE Ch. 3.3 - Prob. 72PE Ch. 3.3 - Prob. 73PE Ch. 3.3 - 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Prob. 19PE Ch. 3.6 - Prob. 20PE Ch. 3.6 - Prob. 21PE Ch. 3.6 - Prob. 22PE Ch. 3.6 - Prob. 23PE Ch. 3.6 - Prob. 24PE Ch. 3.6 - Prob. 25PE Ch. 3.6 - Prob. 26PE Ch. 3.6 - Prob. 27PE Ch. 3.6 - Prob. 28PE Ch. 3.6 - Prob. 29PE Ch. 3.6 - Prob. 30PE Ch. 3.6 - Prob. 31PE Ch. 3.6 - Prob. 32PE Ch. 3.6 - Prob. 33PE Ch. 3.6 - Prob. 34PE Ch. 3.6 - Prob. 35PE Ch. 3.6 - Prob. 36PE Ch. 3.6 - Prob. 37PE Ch. 3.6 - Prob. 38PE Ch. 3.6 - Prob. 39PE Ch. 3.6 - Prob. 40PE Ch. 3.6 - Prob. 41PE Ch. 3.6 - Prob. 42PE Ch. 3.6 - Prob. 43PE Ch. 3.6 - Prob. 44PE Ch. 3.6 - Prob. 45PE Ch. 3.6 - For Exercises 2754, solve the inequalities....Ch. 3.6 - Prob. 47PE Ch. 3.6 - Prob. 48PE Ch. 3.6 - Prob. 49PE Ch. 3.6 - Prob. 50PE Ch. 3.6 - Prob. 51PE Ch. 3.6 - Prob. 52PE Ch. 3.6 - Prob. 53PE Ch. 3.6 - Prob. 54PE Ch. 3.6 - Prob. 55PE Ch. 3.6 - Prob. 56PE Ch. 3.6 - Prob. 57PE Ch. 3.6 - Prob. 58PE Ch. 3.6 - Prob. 59PE Ch. 3.6 - Prob. 60PE Ch. 3.6 - Prob. 61PE Ch. 3.6 - Prob. 62PE Ch. 3.6 - Prob. 63PE Ch. 3.6 - Prob. 64PE Ch. 3.6 - 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Prob. 4SP Ch. 3.7 - Prob. 5SP Ch. 3.7 - Prob. 1PE Ch. 3.7 - Prob. 2PE Ch. 3.7 - Prob. 3PE Ch. 3.7 - Prob. 4PE Ch. 3.7 - Prob. 5PE Ch. 3.7 - Prob. 6PE Ch. 3.7 - Prob. 7PE Ch. 3.7 - Prob. 8PE Ch. 3.7 - Prob. 9PE Ch. 3.7 - Prob. 10PE Ch. 3.7 - Prob. 11PE Ch. 3.7 - Prob. 12PE Ch. 3.7 - Prob. 13PE Ch. 3.7 - Prob. 14PE Ch. 3.7 - Prob. 15PE Ch. 3.7 - Prob. 16PE Ch. 3.7 - Prob. 17PE Ch. 3.7 - Prob. 18PE Ch. 3.7 - Prob. 19PE Ch. 3.7 - Prob. 20PE Ch. 3.7 - Prob. 21PE Ch. 3.7 - Prob. 22PE Ch. 3.7 - Prob. 23PE Ch. 3.7 - Prob. 24PE Ch. 3.7 - Prob. 25PE Ch. 3.7 - Prob. 26PE Ch. 3.7 - Prob. 27PE Ch. 3.7 - Prob. 28PE Ch. 3.7 - Prob. 29PE Ch. 3.7 - Prob. 30PE Ch. 3.7 - Prob. 31PE Ch. 3.7 - Prob. 32PE Ch. 3.7 - Prob. 33PE Ch. 3.7 - Prob. 34PE Ch. 3.7 - Prob. 35PE Ch. 3.7 - Prob. 36PE Ch. 3.7 - Prob. 37PE Ch. 3.7 - For Exercises 2948, use a variation model to solve...Ch. 3.7 - Prob. 39PE Ch. 3.7 - Prob. 40PE Ch. 3.7 - Prob. 41PE Ch. 3.7 - Prob. 42PE Ch. 3.7 - Prob. 43PE Ch. 3.7 - Prob. 44PE Ch. 3.7 - Prob. 45PE Ch. 3.7 - 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Tsunami Waves and BreakwatersThis is a continuation of Exercise 16. Breakwaters affect wave height by reducing energy. See Figure 5.30. If a tsunami wave of height H in a channel of width W encounters a breakwater that narrows the channel to a width w, then the height h of the wave beyond the breakwater is given by h=HR0.5, where R is the width ratio R=w/W. a. Suppose a wave of height 8 feet in a channel of width 5000feet encounters a breakwater that narrows the channel to 3000feet. What is the height of the wave beyond the breakwater? b. If a channel width is cut in half by a breakwater, what is the effect on wave height? 16. Height of Tsunami WavesWhen waves generated by tsunamis approach shore, the height of the waves generally increases. Understanding the factors that contribute to this increase can aid in controlling potential damage to areas at risk. Greens law tells how water depth affects the height of a tsunami wave. If a tsunami wave has height H at an ocean depth D, and the wave travels to a location with water depth d, then the new height h of the wave is given by h=HR0.25, where R is the water depth ratio given by R=D/d. a. Calculate the height of a tsunami wave in water 25feet deep if its height is 3feet at its point of origin in water 15,000feet deep. b. If water depth decreases by half, the depth ratio R is doubled. How is the height of the tsunami wave affected?
Find the unknown value. 27. y varies jointly with x and the cube root of 2. If when x=2 and z=27,y=12, find y if x=5 and z=8.

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