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Cellular telephones use : 1)

a country has 221 mobile cellular telephones per 250 inhabitants. if the country's population is about 2,800 how many mobile
1. 1 answer
2. asked by shannon
3. 455 views
Describe how telephones looked or what was unique about themWrite at least 2 sentences. Use these sentence starters. 1.
1. 1 answer
2. 48 views
Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were
1. 5 answers
2. asked by Anonymous
3. 2,706 views
How can broadcasting stations send their signals around the world?using X-rays using TV satellites using the Global Positioning
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2. asked by mir
3. 126 views
How have telephones changed over the years. Be specific!Write at least 2 sentences. Use these sentence starters to help: 1. When
1. 1 answer
2. 47 views
When was the telephone invented?Who invented it? How did people use telephones at first? Write at least 2 sentences! Use these
1. 1 answer
2. 48 views
The weekly cost of manufacturing x telephones per week is found by a manufacturer to be C(x)= 500+20x+xsq dollars.The telephones
1. 4 answers
2. asked by Anonymous
3. 977 views
What kind of waves do cellular telephones use to transmit and receive signals?gamma rays microwaves infrared rays ultraviolet
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2. asked by mir
3. 119 views
recently, cellular telephones have become very popular. At the same time new technology has made them less expensive to produce.
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2. asked by ronie
3. 568 views
. The number of cellular telephones has increased dramatically in each of the past few years. Therefore there will be even more
1. 3 answers
2. asked by Ahish
3. 578 views