College Algebra (Collegiate Math)
2nd Edition
ISBN: 9780077836344
Author: Julie Miller, Donna Gerken
Publisher: McGraw-Hill Education
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Chapter 1.1, Problem 70PE
For Exercises 67–88, solve for the specified variable. (See Examples 8–9)
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In Exercises 1–6, solve for x.
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- For Exercises 23–32, solve the equation. a. Write the solution set for the general solution. b. Write the solution set on the interval [0, 2x). (See Examples 2–4) 26. sec (-2x) = -V2 %3Darrow_forwardPlease help with Worksheet 15.7 #1. Thanks!arrow_forwardPlease help with Worksheet 15.4 #1. thank you!arrow_forward
- In Exercises 87–88, use the graph of f(x) = |4 – x| to solve each equation or inequality. y flx) = |4 – x| y = 53- y = 1 $ 9 10 87. 14 - x| = 1 88. 14 - x| < 5arrow_forwardSolve the variation problems in Exercises 68–73. 68. A company's profit varies directly as the number of products it sells. The company makes a profit of $1175 on the sale of 25 products. What is the company's profit when it sells 105 products? 69. The distance that a body falls from rest varies directly as the square of the time of the fall. If skydivers fall 144 feet in 3 seconds, how far will they fall in 10 seconds? 70. The pitch of a musical tone varies inversely as its wavelength. A tone has a pitch of 660 vibrations per second and a wavelength of 1.6 feet. What is the pitch of a tone that has a wavelength of 2.4 feet? 71. The loudness of a stereo speaker, measured in decibels, varies inversely as the square of your distance from the speaker. When you are 8 feet from the speaker, the loudness is 28 decibels. What is the loudness when you are 4 feet from the speaker? 72. The time required to assemble computers varies directly as the number of computers assembled and inversely as…arrow_forwardAssume that 6% of the sixth graders and 3% of the fifth graders participate in Math Olympiad. There are 1 1/2 times as many sixth graders as fifth graders at that school. What percentage of the fifth and sixth graders in all participate in the Math Olympiad?5.2%9%4%4.8% pls answer quicklyarrow_forward
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