10. A sample of metal is heated to 698°C and then allowed to cool. The temperature of the metal over time is given by the formula n= 698– 21 -0.51, where t is the time in seconds after the start of the cooling process, and n is the temperature of the sample in degrees Celsius. After how many seconds will the temperature of the sample be 500°C? a) 16 b) 18 c)20 d) 22 e) 24 f) 26

10. A sample of metal is heated to 698°C and then allowed to cool. The temperature of the metal over time is given by the formula n= 698– 21 -0.51, where t is the time in seconds after the start of the cooling process, and n is the temperature of the sample in degrees Celsius. After how many seconds will the temperature of the sample be 500°C? a) 16 b) 18 c)20 d) 22 e) 24 f) 26

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

10. A sample of metal is heated to 698°C and then allowed to cool. The temperature of
the metal over time is given by the formula n= 698– 21 -0.51, where t is the time
in seconds after the start of the cooling process, and n is the temperature of the
sample in degrees Celsius. After how many seconds will the temperature of the
sample be 500°C?
a) 16
b) 18
c)20
d) 22
e) 24
f) 26

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