Radar Detectors Radar detectors are either powered by their own battery or plug into the cigarette lighter socket. All radar detectors come in three models: no-frills, standard, and fancy. In addition, detectors powered by their own batteries detect either radar or laser, or both, whereas the plug-in types come in models that detect either radar or laser, but not both. How many different radar detectors can you buy? X choices

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section: Chapter Questions
Problem 8DE
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Radar Detectors Radar detectors are either powered by their own battery or plug into the cigarette lighter socket. All radar detectors come in three models: no-frills, standard, and fancy. In addition, detectors
powered by their own batteries detect either radar or laser, or both, whereas the plug-in types come in models that detect either radar or laser, but not both. How many different radar detectors can you buy?
choices
Transcribed Image Text:Radar Detectors Radar detectors are either powered by their own battery or plug into the cigarette lighter socket. All radar detectors come in three models: no-frills, standard, and fancy. In addition, detectors powered by their own batteries detect either radar or laser, or both, whereas the plug-in types come in models that detect either radar or laser, but not both. How many different radar detectors can you buy? choices
Telephone Numbers In the past, a local telephone number in a country consisted of a sequence of two letters followed by five digits. Three letters were associated with each number from 2 to 9 (just as in the
standard telephone layout shown in the figure) so that each telephone number corresponded to a sequence of seven digits. How many different sequences of seven digits were possible?
43264
4
7
GHI
PRS
5
8
0
ABC
JKL
TUV
X sequences
3
DEF
6
MNO
9
WXY
Transcribed Image Text:Telephone Numbers In the past, a local telephone number in a country consisted of a sequence of two letters followed by five digits. Three letters were associated with each number from 2 to 9 (just as in the standard telephone layout shown in the figure) so that each telephone number corresponded to a sequence of seven digits. How many different sequences of seven digits were possible? 43264 4 7 GHI PRS 5 8 0 ABC JKL TUV X sequences 3 DEF 6 MNO 9 WXY
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