20. The stratosphere is the layer of the Earth's atmosphere that is more than 10 kilometers (km) and less than 50 km above the Earth's surface. Which of the following inequalities describes all possible heights x, in km, above the Earth's surface that are in the stratosphere? A. x + 10| < 50 B. |x – 10| < 50 C. |x + 30| < 20 D. |x – 30 < 20

20. The stratosphere is the layer of the Earth's atmosphere that is more than 10 kilometers (km) and less than 50 km above the Earth's surface. Which of the following inequalities describes all possible heights x, in km, above the Earth's surface that are in the stratosphere? A. x + 10| < 50 B. |x – 10| < 50 C. |x + 30| < 20 D. |x – 30 < 20

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

20. The stratosphere is the layer of the Earth's atmosphere that is more than 10 kilometers (km) and less than 50 km
above the Earth's surface. Which of the following inequalities describes all possible heights x, in km, above the Earth's
surface that are in the stratosphere?
A. x + 10| < 50
B. |x – 10| < 50
C. |x + 30| < 20
D. |x – 30 < 20

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